107019

Appears in sequences

• a(n) = binomial(9*n+3, n)/(3*n+1).at n=5A234506
• a(n) is the index of the smallest n-gonal number with binary weight n.at n=29A359091
• Numbers k such that sigma(k) = psi(k) + tau(k)^3.at n=34A390297