1149984

Appears in sequences

• a(n) = n^4 - n^3.at n=33A085537
• a(n) = n*(n + 1)^3.at n=32A085540
• Prime power perfect numbers: If n = Product p_i^r_i let PPsigma(n) = Product {Sum p_i^s_i, 2<=s_i<=r_i, s_i is prime}; sequence gives numbers k such that PPsigma(k) = 2*k.at n=22A096290
• Primitive prime power perfect numbers: A096290, with multiples of earlier numbers excluded.at n=1A100509
• Array read by antidiagonals: T(n,m) = 2^n*(1+2^n)^m; n,m >= 0.at n=41A264872
• Numbers k such that k^2 is the sum of two positive 5th powers.at n=16A291850