Number of (n+1) X (4+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 7 (constant-stress 1 X 1 tilings).
A234724
Number of (n+1) X (4+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 7 (constant-stress 1 X 1 tilings).
Terms
- a(0) =19120a(1) =48976a(2) =116168a(3) =357208a(4) =1000264a(5) =3403528a(6) =10632200a(7) =38594056a(8) =129877960a(9) =493469896a(10) =1750807688a(11) =6882950728a(12) =25404230344a(13) =102540693448a(14) =390317557640
External references
- oeis: A234724