Number of 2Xn 0..3 arrays with row sums nondecreasing and column sums unimodal.

A224124

Number of 2Xn 0..3 arrays with row sums nondecreasing and column sums unimodal.

Terms

    a(0) =10a(1) =150a(2) =1747a(3) =16782a(4) =140210a(5) =1050460a(6) =7227405a(7) =46371039a(8) =281020959a(9) =1623035066a(10) =9002891450a(11) =48234712165a(12) =250875276249

External references