Number of nX7 nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 2 and every value increasing by 0 or 1 with every step right, diagonally se or down.
A252982
Number of nX7 nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 2 and every value increasing by 0 or 1 with every step right, diagonally se or down.
Terms
- a(0) =15a(1) =145a(2) =1836a(3) =27905a(4) =433401a(5) =5672484a(6) =60650883a(7) =766674140a(8) =4970634131a(9) =18692194423a(10) =49050683133a(11) =101029007619a(12) =176694157069a(13) =276519316503a(14) =400550856993a(15) =548788778539a(16) =721233081141a(17) =917883764799
External references
- oeis: A252982