Number of 3 X n 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302267
Number of 3 X n 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =4a(1) =32a(2) =153a(3) =772a(4) =3818a(5) =19191a(6) =96004a(7) =481261a(8) =2411557a(9) =12086268a(10) =60572976a(11) =303579352a(12) =1521476119a(13) =7625336613a(14) =38216661796a(15) =191534345225a(16) =959932146275
External references
- oeis: A302267