26817

Appears in sequences

• [ (4th elementary symmetric function of S(n))/(2nd elementary symmetric function of S(n)) ], where S(n) = {first n+3 positive integers congruent to 2 mod 3}.at n=17A024402
• Number of columns in the character table of the symmetric group S_n that have zero sum.at n=38A085642
• Expansion of 1/(1-x/(1-x/(1-x/(1-2x/(1-x/(1-4x/(1-x/(1-6x/(1-... (continued fraction).at n=9A186001
• Total sum of parts of multiplicity 10 in all partitions of n.at n=45A222738
• Number of nondecreasing -2..2 vectors of length n whose dot product with some other -2..2 vector equals n.at n=25A226334
• Triangle read by rows: T(n, k) = Sum_{j=0..n} binomial(-j-1, -n-1)*S1(j, k) where S1 are the Stirling cycle numbers A132393.at n=49A269953
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 81", based on the 5-celled von Neumann neighborhood.at n=33A270100
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 497", based on the 5-celled von Neumann neighborhood.at n=32A272558
• Numbers k > 4 such that both k - 2^(2^m) and k + 2^(2^m) are prime for every natural m > 0 with 2^(2^m) < k.at n=22A371303
• Expansion of e.g.f. log(1-x)^4 * exp(-x) / 24.at n=9A381066