Number of (n+2)X(n+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum.
A258886
Number of (n+2)X(n+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum.
Terms
- a(0) =242a(1) =2304a(2) =6072a(3) =7225a(4) =12544a(5) =21025a(6) =32400a(7) =48841a(8) =69696a(9) =97969a(10) =132496a(11) =177241a(12) =230400a(13) =297025a(14) =374544a(15) =469225a(16) =577600a(17) =707281a(18) =853776a(19) =1026169a(20) =1218816a(21) =1442401a(22) =1690000a(23) =1974025a(24) =2286144a(25) =2640625a(26) =3027600a(27) =3463321a(28) =3936256a(29) =4464769
External references
- oeis: A258886