204156

Appears in sequences

• Dodecahedral numbers: a(n) = n*(3*n - 1)*(3*n - 2)/2.at n=36A006566
• 1/6 of product of three numbers: n-th prime, previous and following number.at n=27A127920
• Number of ways of writing n as the sum of 9 triangular numbers.at n=36A226253
• a(n) = [x^(n*(n+1)/2)] G(x)^(n+1) where G(x) = Sum_{n>=0} x^(n*(n+1)/2).at n=8A232108
• a(n) = binomial(9*n, n-9).at n=3A281580