32844

Appears in sequences

• Number of 4-block ordered bicoverings of an unlabeled n-set.at n=18A060091
• Numbers k such that prime(k) == -1 (mod sigma(k)).at n=18A067696
• Even numbers such that the sum of the even divisors and the sum of the odd divisors are a square or a cube.at n=25A263695
• G.f. A(x) satisfies: A(x) = A( x^11 + 11*x*A(x)^11 )^(1/11), with A(0)=0, A'(0)=1.at n=6A271933
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 545", based on the 5-celled von Neumann neighborhood.at n=21A283011
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 801", based on the 5-celled von Neumann neighborhood.at n=21A284135
• p-INVERT of (1,0,0,1,0,0,1,0,0,...), where p(S) = 1 - S - 2 S^2.at n=13A291035
• Number of ways to write n as an ordered sum of 8 nonzero triangular numbers.at n=48A340953
• a(n) is the least k such that A127064(k) = n.at n=26A378417
• G.f. A(x) satisfies 11*x = Sum_{n=-oo..+oo} (-1)^n * x^(11*n) * (A(x) + x^n)^(11*n) with A(0) = 1.at n=5A380685
• a(n) = (1/(2*n+1)) * Sum_{k=0..n} (k+1)^4 * (2*k+1) * binomial(3*n-k,n-k).at n=5A390970