Number of nX5 nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 3 and every value increasing by 0 or 1 with every step right, diagonally se or down.
A253008
Number of nX5 nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 3 and every value increasing by 0 or 1 with every step right, diagonally se or down.
Terms
- a(0) =4a(1) =19a(2) =54a(3) =124a(4) =250a(5) =14795a(6) =309990a(7) =2853292a(8) =14125312a(9) =46481352a(10) =116171792a(11) =240747928a(12) =438003360a(13) =725775144a(14) =1121905200a(15) =1644235704a(16) =2310608832a(17) =3138866760a(18) =4146851664a(19) =5352405720a(20) =6773371104a(21) =8427589992a(22) =10332904560
External references
- oeis: A253008