534017484

Appears in sequences

• Values of n such that the sum of the 7-gonal number (5*n^2 - 3*n)/2 and the following 7-gonal number is a 7-gonal number.at n=4A133328
• Triangle, read by rows, T(n, k) = binomial(n*binomial(n, k), k).at n=33A157108