Number of nX3 0..1 arrays with every element equal to 2, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A300771
Number of nX3 0..1 arrays with every element equal to 2, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =2a(2) =3a(3) =11a(4) =32a(5) =102a(6) =330a(7) =1059a(8) =3418a(9) =11023a(10) =35561a(11) =114744a(12) =370251a(13) =1194696a(14) =3854994a(15) =12439181a(16) =40138345a(17) =129517277a(18) =417922738a(19) =1348541219a(20) =4351434893a(21) =14041088118a(22) =45307389076a(23) =146196612400a(24) =471743129235
External references
- oeis: A300771