Number of nonnegative integer solutions to 2*n = x_1 + x_2 + ... + x_n + 2*y_1 + 2*y_2 + ... + 2*y_n.

A351856

Number of nonnegative integer solutions to 2*n = x_1 + x_2 + ... + x_n + 2*y_1 + 2*y_2 + ... + 2*y_n.

Terms

    a(0) =2a(1) =14a(2) =119a(3) =1086a(4) =10252a(5) =98735a(6) =963832a(7) =9502014a(8) =94386908a(9) =943206264a(10) =9471346755a(11) =95491466655a(12) =966026045376

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