Number of nX5 0..1 arrays with every element unequal to 2, 3 or 4 king-move adjacent elements, with upper left element zero.
A303687
Number of nX5 0..1 arrays with every element unequal to 2, 3 or 4 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =61a(2) =27a(3) =343a(4) =349a(5) =2809a(6) =4619a(7) =29475a(8) =59695a(9) =312565a(10) =749915a(11) =3414709a(12) =9159379a(13) =37886863a(14) =109856087a(15) =425475373a(16) =1300509341a(17) =4819052399a(18) =15264319545a(19) =54916710773a(20) =178135150965a(21) =628466577459
External references
- oeis: A303687