18331

Appears in sequences

• a(n) = (n+1)*(n^2 +8*n +6)/6. Number of n-dimensional partitions of 4. Number of terms in 4th derivative of a function composed with itself n times.at n=45A008778
• Theorems from propositional calculus, translated into decimal digits.at n=32A101273
• Semiprimes in A056108.at n=21A113527
• A three-dimensional version of the cellular automaton A160118, using cubes.at n=22A160119
• Positive integers of the form (10*m^2+1)/11.at n=25A179338
• a(n) = 12*n^2 + 2*n + 1.at n=39A194454
• Numbers k such that k divides 1 + Sum_{j=1..k} prime(j)^13.at n=16A233349
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 515", based on the 5-celled von Neumann neighborhood.at n=26A272707
• Third Moebius transform of A000219. Number of plane partitions of n whose multiset of rows is aperiodic and whose multiset of columns is also aperiodic and whose parts are relatively prime.at n=17A323585
• Number of connected multigraphs with n edges and rooted at two indistinguishable vertices whose removal leaves a connected graph.at n=8A338999
• G.f. A(x) satisfies A(x) = (1 + x*A(x)^3) * C(x), where C(x) is the g.f. of A000108.at n=6A381782
• a(n) = floor(n^2/3 + n^3/2).at n=33A390565