155061

Appears in sequences

• a(n) = (2*n - 1)*(7*n^2 - 7*n + 6)/6.at n=40A063490
• The Wiener index of a benzenoid consisting of a linear chain of n hexagons.at n=29A143938
• Integers n such that 2n^2+1, 2n^3+1, 2n^4+1 and 2n^5+1 are prime.at n=6A239925