Number of nX3 0..1 arrays with each 1 adjacent to 2, 3 or 4 king-move neighboring 1s.
A296822
Number of nX3 0..1 arrays with each 1 adjacent to 2, 3 or 4 king-move neighboring 1s.
Terms
- a(0) =1a(1) =21a(2) =94a(3) =352a(4) =2133a(5) =11930a(6) =60772a(7) =326592a(8) =1772900a(9) =9465417a(10) =50680823a(11) =272327824a(12) =1460652327a(13) =7831666171a(14) =42016275835a(15) =225392908023
External references
- oeis: A296822