Number of nX3 0..1 arrays with every element equal to 0, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero.

A298722

Number of nX3 0..1 arrays with every element equal to 0, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =7a(2) =5a(3) =15a(4) =21a(5) =57a(6) =119a(7) =285a(8) =725a(9) =1833a(10) =4807a(11) =12843a(12) =34439a(13) =93327a(14) =254085a(15) =693267a(16) =1896489a(17) =5194309a(18) =14237415a(19) =39049277a(20) =107136761a(21) =294009425a(22) =806965323a(23) =2215076227a(24) =6080649203a(25) =16692824711a(26) =45826947389a(27) =125811287255a(28) =345400728813

External references