116809

Appears in sequences

• Number of bicyclic skeletons with n carbon atoms and the parameter 'alpha' having the value of 0. See the paper by Hendrickson and Parks for details.at n=9A125669
• a(n) = n*(7*n^2 - 3*n - 1)/3.at n=37A214659
• Numbers k not divisible by 3 such that no prime is the concatenation of two numbers whose sum is n.at n=3A375938