The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A251469 Number of (n+1)X(2+1) 0..5 arrays with every 2X2 subblock summing to a prime 1
 5896, 167554, 4789458, 137223466, 3932396176, 112715450380, 3230677312514, 92604214969034, 2654307805769248, 76083251093354674, 2180785359980845050, 62510150129536606768, 1791746081594543880418, 51358676110997710382728 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 2 of A251474 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 R. H. Hardin, Empirical recurrence of order 45 FORMULA Empirical recurrence of order 45 (see link above) EXAMPLE Some solutions for n=2 ..1..0..1....1..3..2....4..0..1....1..1..0....3..3..5....3..4..5....0..2..5 ..5..1..1....1..0..2....3..0..4....2..1..3....0..5..4....0..0..4....3..0..0 ..2..5..4....2..2..1....5..3..0....4..0..1....4..4..4....3..2..1....3..1..2 CROSSREFS Sequence in context: A233945 A264216 A061735 * A025513 A015295 A209431 Adjacent sequences:  A251466 A251467 A251468 * A251470 A251471 A251472 KEYWORD nonn AUTHOR R. H. Hardin, Dec 02 2014 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified November 30 19:02 EST 2021. Contains 349424 sequences. (Running on oeis4.)