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Revision History for A344975

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A344975

Numbers k such that A011772(k) divides A344875(k), but k is not a power of prime (in A000961).
(history; published version)

#15 by Susanna Cuyler at Sat Jun 05 16:43:55 EDT 2021

STATUS

proposed

approved

#14 by Antti Karttunen at Sat Jun 05 12:25:06 EDT 2021

STATUS

editing

proposed

#13 by Antti Karttunen at Sat Jun 05 10:57:40 EDT 2021

COMMENTS

This is not a subsequence of A344882. The first terms of this sequence that do not occur there are: 900, 1260, 1560, ... etc, see A344694. First terms of A344882 missing from not present here are: 60, 66, 88, 92, 105, etc.

#12 by Antti Karttunen at Sat Jun 05 06:50:57 EDT 2021

COMMENTS

This is not a subsequence of A344882. The first terms of this sequence that do not occur there are: 900, 1260, 1560, 3740, 6552, 6669, 9680, ... etc, see A344694. First terms of A344882 missing from here are: 60, 66, 88, 92, 105, etc.

CROSSREFS

Cf. also A344595, A344694, A344978 (subsequences).

#11 by Antti Karttunen at Sat Jun 05 06:31:05 EDT 2021

PROG

(PARI) isA344975(n) = ((n>1)&&!isprimepower(n)&&(0==A344973(n)));

CROSSREFS

Cf. A000961, A011772, A344875, A344882, A344973.

#10 by Antti Karttunen at Sat Jun 05 06:28:33 EDT 2021

PROG

(PARI) isA344974(n) = (0==A344973(n));

CROSSREFS

Positions of ones in A344970, and of zeros in A344973.

#9 by Antti Karttunen at Sat Jun 05 06:27:32 EDT 2021

PROG

(PARI) isA344974(n) = (0==A344973(n));

CROSSREFS

Positions of ones in A344970, and of zeros in A344973.

#8 by Antti Karttunen at Sat Jun 05 05:46:34 EDT 2021

CROSSREFS

Intersection of A024619 and A344974. A344978 is a subsequence.

Cf. also A344595, A344978 (subsequences).

#7 by Antti Karttunen at Sat Jun 05 03:54:29 EDT 2021

NAME

Numbers k such that A011772(k) divides A344875(k), but k is not a power of prime (in A000961).

CROSSREFS

Cf. A000961, A011772, A344875, A344882.

Setwise difference Intersection of A024619 and A344974 \ A000961. A344978 is a subsequence.

#6 by Antti Karttunen at Fri Jun 04 08:30:37 EDT 2021

CROSSREFS

Setwise difference A344974 \ A000961. A344978 is a subsequence.