Number of (n+1) X (5+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 6 (constant-stress 1 X 1 tilings).
A235307
Number of (n+1) X (5+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 6 (constant-stress 1 X 1 tilings).
Terms
- a(0) =4006a(1) =6786a(2) =10790a(3) =21090a(4) =38182a(5) =83394a(6) =168998a(7) =400674a(8) =889126a(9) =2238786a(10) =5323430a(11) =14015010a(12) =35074342a(13) =95480514a(14) =248156198a(15) =692867874a(16) =1852387366a(17) =5272270146a(18) =14401045670a(19) =41585674530a(20) =115480062502a(21) =337084349634a(22) =948148162598
External references
- oeis: A235307