A146089 Number of n X n arrays of squares of integers summing to 4 with every element equal to at least one neighbor.

1, 32, 219, 698, 1657, 3336, 6023, 10054, 15813, 23732, 34291, 48018, 65489, 87328, 114207, 146846, 186013, 232524

Offset

2,2

Links

Table of n, a(n) for n=2..19.

Crossrefs

The 62 sequences related to this one:

A146089 A146090 A146092 A146123 A146124 A146125 A146126 A146196 A146197 A146198 A146199 A146200

A146201 A146202 A146203 A146204 A146210 A146294 A146299 A146300 A146320 A146324 A146341 A146342

A146346 A146347 A146349 A146479 A146495 A146496 A146497 A146498 A146499 A146500 A146502 A146503

A146504 A146505 A146506 A146508 A146513 A146514 A146515 A146516 A146517 A146518 A146519 A146520

A146521 A146522 A146530 A146545 A146546 A146547 A146548 A146549 A146550 A146551 A146552 A146553

A146554 A146555 (End)

Sequence in context: A160538 A200787 A250354 * A250232 A070053 A022146

Adjacent sequences: A146086 A146087 A146088 * A146090 A146091 A146092

Keyword

nonn

Author

R. H. Hardin Apr 14 2009

Status

approved