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Revision History for A331788

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Showing entries 1-10 | older changes
a(n) is the smallest m such that for any N, at least one of S(N), S(N+1), ..., S(N+m-1) is divisible by n, where S(N) is the sum of digits of N.
(history; published version)
#19 by Peter Luschny at Sat Feb 01 12:08:27 EST 2020
STATUS

proposed

approved

#18 by Jianing Song at Sat Feb 01 10:38:40 EST 2020
STATUS

editing

proposed

#17 by Jianing Song at Sat Feb 01 10:18:22 EST 2020
LINKS

Jianing Song, <a href="/A331788/b331788.txt">Table of n, a(n) for n = 1..1000</a>

STATUS

approved

editing

#16 by Alois P. Heinz at Thu Jan 30 06:46:15 EST 2020
STATUS

proposed

approved

#15 by Michel Marcus at Thu Jan 30 06:44:22 EST 2020
STATUS

editing

proposed

#14 by Michel Marcus at Thu Jan 30 04:36:44 EST 2020
NAME

a(n) is the smallest m such that for any N, at least one of S(N), S(N+1), ..., S(N+m-1) is divisible by n, where S(N) be is the sum of digits of N.

STATUS

approved

editing

#13 by Susanna Cuyler at Wed Jan 29 20:35:33 EST 2020
STATUS

proposed

approved

#12 by Jianing Song at Tue Jan 28 06:11:51 EST 2020
STATUS

editing

proposed

Discussion
Tue Jan 28
06:38
Peter Luschny: Jianing, no, it's alright. I just read too much Shakespeare recently.
#11 by Jianing Song at Tue Jan 28 06:04:20 EST 2020
NAME

Let S(N) be the sum of digits of N. a(n) is the smallest p m such that for any N, at least one of S(N), S(N+1), ..., S(N+pm-1) is divisible by n, where S(N) be the sum of digits of N.

CROSSREFS

Cf. A007953 (S(N)), A051885, A331786.

STATUS

proposed

editing

Discussion
Tue Jan 28
06:11
Jianing Song: Done.
#10 by Jianing Song at Sun Jan 26 05:55:42 EST 2020
STATUS

editing

proposed

Discussion
Mon Jan 27
13:32
Peter Luschny: Et Tu Brute, base?
21:10
Jianing Song: Sorry, but did you mean "base" does not apply here?
Tue Jan 28
02:03
Michel Marcus: for name see A331786