23601

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 92 ones.at n=15A031860
• G.f.: (x+4*x^3+x^5)/((1-x)^2*(1-x^2)^2*(1-x^3)^2).at n=25A083708
• a(n) = a(n-1) + a(n-3) + a(n-5), with a(1..5) = 1.at n=25A109543
• a(n) = 16 + floor(Sum_{j=1..n-1} a(j)/2).at n=18A120142
• Numerator of Hermite(n, 3/14).at n=4A159508
• Permutation of natural numbers, a composition of A241909 and A064216: a(n) = A064216(A241909(n)).at n=45A243061
• Number of unitary polyominoes without holes with n cells. A unitary polyomino is a polyomino whose edges all have length 1.at n=34A245660
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of e.g.f.: exp(Sum_{j>=1} j^(k-1)*A000009(j)*x^j).at n=41A293908
• Number of partitions of n where each part is a power of a factor of n.at n=54A326486
• E.g.f. A(x) satisfies A(x) = exp(x * A(x)^2 / (1 - x * A(x)^2)^2) / (1 - x * A(x)^2).at n=4A380755