Number of nX7 nonnegative integer arrays with upper left 0 and every value within 2 of its king move distance from the upper left and every value increasing by 0 or 1 with every step right, diagonally se or down.
A252835
Number of nX7 nonnegative integer arrays with upper left 0 and every value within 2 of its king move distance from the upper left and every value increasing by 0 or 1 with every step right, diagonally se or down.
Terms
- a(0) =22a(1) =125a(2) =850a(3) =6211a(4) =42738a(5) =244131a(6) =1056756a(7) =3320837a(8) =7822881a(9) =14827629a(10) =24422839a(11) =36628371a(12) =51446975a(13) =68878827a(14) =88923927a(15) =111582275a(16) =136853871a(17) =164738715a(18) =195236807a(19) =228348147a(20) =264072735a(21) =302410571a(22) =343361655a(23) =386925987a(24) =433103567
External references
- oeis: A252835