115560

Appears in sequences

• a(n) = round(n*phi^18), where phi is the golden ratio, A001622.at n=20A004953
• a(n) = ceiling(n*phi^18), where phi is the golden ratio, A001622.at n=20A004973
• Numbers k such that sigma(k) divides k^2.at n=34A090777
• a(n) = 289*n^2 - 2*n.at n=19A158252
• Numbers n for which the terms of the multiplicative sequence {n^2/A049417(n)} are integers.at n=42A185288
• Irregular triangle read by rows where T(n,k) is the number of labeled connected loop-graphs covering n vertices with k edges.at n=55A369195
• Expansion of 1/sqrt((1-2*x)^3 * (1-6*x)).at n=7A383950