Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 2 and no column sum 2.
A255227
Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 2 and no column sum 2.
Terms
- a(0) =127a(1) =133a(2) =142a(3) =154a(4) =172a(5) =199a(6) =238a(7) =295a(8) =379a(9) =502a(10) =682a(11) =946a(12) =1333a(13) =1900a(14) =2731a(15) =3949a(16) =5734a(17) =8350a(18) =12184a(19) =17803a(20) =26038a(21) =38107a(22) =55795a(23) =81718a(24) =119710a(25) =175390a(26) =256993a(27) =376588a(28) =551863a(29) =808741
External references
- oeis: A255227