25884

Appears in sequences

• House numbers: a(n) = (n+1)^3 + Sum_{i=1..n} i^2.at n=26A051662
• Ratio-determined insertion sequence I(0.0833344) (see the link below).at n=4A085260
• Cumulative sum of absolute values of coefficients of q^(2n) in the series expansion of Ramanujan's mock theta function f(q).at n=37A109471
• Positive integers i for which A112049(i) == 8.at n=31A112068
• Numbers k such that sigma(k)*k is a triangular number.at n=27A115909
• Wiener index of the n-sunlet graph.at n=33A180574
• a(n) = n^4 + 3*n^3 - 3*n.at n=11A192398
• Indices of primes in the 11th-order Fibonacci number sequence, A127624.at n=30A257966
• E.g.f.: exp(exp(x) - Sum_{i=0..5} x^i/i!).at n=16A293025
• Expansion of e.g.f. Sum_{k>=1} sigma(k)*(exp(x) - 1)^k/k!, where sigma = sum of divisors (A000203).at n=7A308555
• a(n) is the smallest positive integer which can be represented as the sum of distinct nonzero icosahedral numbers in exactly n ways, or -1 if no such integer exists.at n=20A360215
• Indices of the Sylvester primes (A375543) in the primes (A000040).at n=30A375545