34510

Appears in sequences

• G.f.: (1 + x^3 + x^4 + ... + x^12 + x^15)/Product_{i=1..10} (1 - x^i).at n=35A003403
• Numbers k such that sigma(k) = sigma(k+10).at n=32A015880
• a(n) = Sum_{k=0..n-1} T(n,k) * T(n,k+1), with T given by A026615.at n=7A026957
• Sums of members of groups in A076063.at n=40A076066
• a(n) = n*(n+1)*(5*n + 4)/6.at n=34A162147
• Rhonda numbers in vigesimal number system.at n=6A255732
• a(n) is the index of the first occurrence of n in A317359.at n=43A317361
• Integers n such that the digit set of n^2 is {0,1,4,9}.at n=32A317579
• Expansion of e.g.f. (1/x) * Series_Reversion( x/(1 + x*exp(x^3/6)) ).at n=7A370926