The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A005251

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

a(0) = 0, a(1) = a(2) = a(3) = 1; thereafter, a(n) = a(n-1) + a(n-2) + a(n-4).
(history; published version)

#298 by Michael De Vlieger at Wed Jun 26 23:59:43 EDT 2024

STATUS

proposed

#297 by Michel Marcus at Wed Jun 26 23:39:32 EDT 2024

STATUS

editing

#296 by Michel Marcus at Wed Jun 26 23:39:27 EDT 2024

LINKS

STATUS

approved

#295 by Michael De Vlieger at Thu Jun 20 08:35:18 EDT 2024

STATUS

reviewed

#294 by Joerg Arndt at Thu Jun 20 07:47:13 EDT 2024

STATUS

proposed

#293 by Yifan Xie at Thu Jun 20 07:34:19 EDT 2024

STATUS

editing

#292 by Yifan Xie at Thu Jun 20 07:34:16 EDT 2024

COMMENTS

a(n+2) is the number of n-bit sequences in which each 1 is adjacent to another 1. - Yifan Xie, Jun 18 2024

STATUS

proposed

#291 by Yifan Xie at Tue Jun 18 23:58:49 EDT 2024

STATUS

editing

Discussion

Wed Jun 19

22:48

Kevin Ryde: Very similar to about 3 existing comments (up to 0<->1).

Thu Jun 20

07:33

Yifan Xie: Yes, it's same as Milan Janjic's.

#290 by Yifan Xie at Tue Jun 18 23:58:44 EDT 2024

COMMENTS

STATUS

approved

#289 by Michael De Vlieger at Wed Jan 31 08:03:25 EST 2024

STATUS

reviewed