Number of (n+1) X (7+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 7 (constant-stress 1 X 1 tilings).
A235318
Number of (n+1) X (7+1) 0..6 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) =128128a(1) =206360a(2) =316912a(3) =598976a(4) =1062832a(5) =2291696a(6) =4632208a(7) =11046512a(8) =24862768a(9) =63985520a(10) =156648592a(11) =427611056a(12) =1117112752a(13) =3196232816a(14) =8787317008a(15) =26128056752a(16) =74857634608
External references
- oeis: A235318