Number of n X 7 0..3 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

A201450

Number of n X 7 0..3 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

Terms

    a(0) =4a(1) =110a(2) =844a(3) =1720a(4) =45532a(5) =363693a(6) =1129682a(7) =1136762a(8) =16354832a(9) =80822317a(10) =164740812a(11) =118019739a(12) =1269643884a(13) =4872612379a(14) =7910355612a(15) =4617454222a(16) =41308142036a(17) =133824389250a(18) =186755344178a(19) =94854691897a(20) =750329582592

External references