108720

Appears in sequences

• Triangle, read by rows, that transforms diagonals in the table of coefficients of successive iterations of x+x^2+x^3 (cf. A166880).at n=29A166884
• Column 2 of triangle A166884.at n=6A166886
• Expansion of Sum_{k>=1} k * x^k / (1 - k * x^k)^k.at n=25A324159