Number of nX4 nonnegative integer arrays with each row and column increasing from zero by 0, 1, 2 or 3.
A202920
Number of nX4 nonnegative integer arrays with each row and column increasing from zero by 0, 1, 2 or 3.
Terms
- a(0) =1a(1) =20a(2) =534a(3) =11016a(4) =150590a(5) =1441046a(6) =10457226a(7) =61213311a(8) =302092215a(9) =1297497783a(10) =4965323693a(11) =17234628058a(12) =55015736433a(13) =163298076933a(14) =454724969302
External references
- oeis: A202920