Number of nX5 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 or 4 neighboring 1s.
A296538
Number of nX5 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 or 4 neighboring 1s.
Terms
- a(0) =1a(1) =15a(2) =96a(3) =431a(4) =2104a(5) =10734a(6) =53995a(7) =270584a(8) =1360373a(9) =6842490a(10) =34397698a(11) =172916932a(12) =869345996a(13) =4370695957a(14) =21973721785a(15) =110473467193a(16) =555410077197
External references
- oeis: A296538