27607

Appears in sequences

• Cubes written in base 8.at n=22A004638
• a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Fibonacci numbers), t = (composite numbers).at n=27A025081
• Numerators of continued fraction convergents to sqrt(364).at n=6A041688
• Frobenius number of the numerical semigroup generated by four consecutive tetrahedral numbers.at n=13A069761
• Capped binary boundary codes for holeless strictly non-overlapping polyhexes (all orientations and rotations included).at n=20A258002
• Capped binary boundary codes for fusenes (all orientations and rotations included).at n=20A258012
• Ulam numbers k such that 4*k and 16*k are also Ulam numbers.at n=37A287634
• Fill an infinite square array by following a spiral around the origin; in the central cell enter a(0)=1; thereafter, in the n-th cell, enter the sum of the entries of those earlier cells that are in the same row or column as that cell.at n=22A334741
• The number of connected Feynman graphs in phi^4 theory with n vertices, 2 external legs.at n=8A352174
• Indices of records in A360519.at n=54A361108
• G.f. satisfies A(x) = (1 + x*A(x)*(1 + x*A(x)))^3.at n=6A365128
• Number of ways to tile a strip of length n with squares, dominoes and trominoes, using an equal number of dominoes and trominoes.at n=21A387599