Number of 3Xn 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.
A302082
Number of 3Xn 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =4a(1) =13a(2) =33a(3) =70a(4) =154a(5) =433a(6) =1166a(7) =3153a(8) =8468a(9) =22750a(10) =61199a(11) =165177a(12) =445570a(13) =1201785a(14) =3241825a(15) =8746118a(16) =23596920a(17) =63667249a(18) =171782178a(19) =463490985a(20) =1250567970a(21) =3374237398a(22) =9104258583a(23) =24564843989a(24) =66280181642a(25) =178835414969a(26) =482529064189
External references
- oeis: A302082