120168

Appears in sequences

• Sum of n-th antidiagonal of array in A144502.at n=7A144503
• Number of nX3 1..4 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in increasing order.at n=6A166820
• G.f. A(x) satisfies x = Sum_{n>=1} A( x^n*(1-x)^(2*n) ).at n=8A380551