138320

Appears in sequences

• Least sum of 4 positive cubes in exactly n ways.at n=14A025420
• a(n) = least common multiple of {1, 4, 7, 10, 13 ..., 3n+1} (A016777).at n=6A051536
• Numbers k not divisible by 6 such that sigma(k) > 3*k.at n=8A126104
• Number of standard Young tableaux of shape [3n,3].at n=31A215543
• Triangle read by rows: T(n,k) is the number of permutations of length n composed of exactly k overlapping adjacent runs (for n >= 1 and 1 <= k <= n).at n=57A309993
• Triangle read by rows, T(n, k) (0 <= k <= n) = (-m)^(n-k)*[x^k] KummerU(-n, 1/m, x) for m = 3.at n=32A331331
• a(n) is the least integer that can be expressed as the difference of two octagonal numbers in exactly n ways.at n=10A334037
• Dirichlet g.f.: (zeta(s-3) / zeta(s))^2.at n=32A338165