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Revision History for A034472

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Showing entries 1-10 | older changes

A034472

a(n) = 3^n + 1.
(history; published version)

#109 by Michael De Vlieger at Sat Jul 13 10:12:08 EDT 2024

STATUS

reviewed

approved

#108 by Stefano Spezia at Sat Jul 13 07:56:39 EDT 2024

STATUS

proposed

reviewed

#107 by Yifan Xie at Sat Jul 13 07:20:04 EDT 2024

STATUS

editing

proposed

#106 by Yifan Xie at Sat Jul 13 07:20:00 EDT 2024

COMMENTS

a(n-1) is the number of n-digit base 3 numbers that have an even number of digits 0. - Yifan Xie, Jul 13 2024

STATUS

proposed

editing

#105 by Yifan Xie at Sat Jul 13 04:55:08 EDT 2024

STATUS

editing

proposed

Discussion

Sat Jul 13

06:15

Stefano Spezia: In your comment, it misses the dependence on n

06:16

Stefano Spezia: Base 3 n digits numbers ?

#104 by Yifan Xie at Sat Jul 13 04:55:05 EDT 2024

COMMENTS

a(n-1) is the number of base 3 numbers that have an even number of digits 0. - Yifan Xie, Jul 13 2024

STATUS

approved

editing

#103 by Joerg Arndt at Wed Feb 07 01:17:45 EST 2024

STATUS

editing

approved

#102 by Paolo P. Lava at Tue Feb 06 15:35:53 EST 2024

COMMENTS

Numbers n for which the expression 3^n/(n-1) is an integer. - Paolo P. Lava, May 29 2006

STATUS

approved

editing

#101 by Alois P. Heinz at Wed Sep 27 06:02:35 EDT 2023

STATUS

editing

approved

#100 by Alois P. Heinz at Wed Sep 27 06:02:32 EDT 2023

DATA

2, 4, 10, 28, 82, 244, 730, 2188, 6562, 19684, 59050, 177148, 531442, 1594324, 4782970, 14348908, 43046722, 129140164, 387420490, 1162261468, 3486784402, 10460353204, 31381059610, 94143178828, 282429536482, 847288609444, 2541865828330, 7625597484988

STATUS

approved

editing