31865

Appears in sequences

• Iccanobirt numbers (15 of 15): a(n) = R(R(a(n-1)) + R(a(n-2)) + R(a(n-3))), where R is the digit reversal function A004086.at n=22A102125
• Iccanobirt semiprimes (15 of 15): Semiprime numbers in A102125.at n=6A102205
• Coefficient array for powers of x^2 of polynomials appearing in a generalized Melham conjecture on alternating sums of fifth powers of Chebyshev S polynomials with odd indices.at n=28A220671
• Numerators of the n-th iteration of the alternating continued fraction of the positive integers, initiated with (1 + ...).at n=7A244279
• The difference between the two largest distinct parts of a partition (0 if no distinct parts), summed over all partitions of n.at n=30A268191
• G.f. A(x) satisfies: [x^n] A(x)^(n+1) = [x^n] (1 + x*A(x)^(n+5))^(n+1) for n >= 0.at n=5A360237
• a(n) = 10*binomial(n,5) + 4*binomial(n,3) + n.at n=15A383797
• a(n) = Sum_{k=1..n} binomial(n+1, k+1)*A000272(k).at n=7A392286