Number of 7Xn 0..1 arrays with rows, diagonals and antidiagonals unimodal.
A223674
Number of 7Xn 0..1 arrays with rows, diagonals and antidiagonals unimodal.
Terms
- a(0) =128a(1) =16384a(2) =371641a(3) =2343189a(4) =8052573a(5) =21347949a(6) =51831694a(7) =124050234a(8) =299298122a(9) =726344042a(10) =1747724083a(11) =4106362589a(12) =9335920794a(13) =20497890026a(14) =43553671579a(15) =89873040155a(16) =180673406871a(17) =354644672067a(18) =680755779412
External references
- oeis: A223674