Number of (n+3)X(2+3) 0..1 arrays with each row and column divisible by 15, read as a binary number with top and left being the most significant bits.

A262451

Number of (n+3)X(2+3) 0..1 arrays with each row and column divisible by 15, read as a binary number with top and left being the most significant bits.

Terms

    a(0) =3a(1) =5a(2) =9a(3) =17a(4) =51a(5) =117a(6) =281a(7) =705a(8) =2115a(9) =6597a(10) =20105a(11) =60433a(12) =181299a(13) =555125a(14) =1688153a(15) =5101505a(16) =15304515a(17) =46132805a(18) =138926985a(19) =417770513a(20) =1253311539a(21) =3762126453a(22) =11293365145a(23) =33895137473a(24) =101685412419a(25) =305043012293a(26) =915147434121

External references