Number of nX3 0..1 arrays with every element equal to 0, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302455
Number of nX3 0..1 arrays with every element equal to 0, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =11a(2) =18a(3) =55a(4) =177a(5) =474a(6) =1397a(7) =4135a(8) =11882a(9) =34847a(10) =101857a(11) =296482a(12) =867237a(13) =2532855a(14) =7392050a(15) =21600199a(16) =63090609a(17) =184246522a(18) =538224973a(19) =1572126423a(20) =4591906058a(21) =13413050687a(22) =39179099921a(23) =114439818402a(24) =334276528661a(25) =976412435063
External references
- oeis: A302455