44252
domain: N
Appears in sequences
- Numbers k such that 235*2^k+1 is prime.at n=32A032494
- Numbers k such that sigma(k-2) + sigma(k+2) = sigma(2k).at n=15A067172
- Numbers n such that n - reverse(n) = phi(n).at n=5A072393
- Number of unlabeled graphs with n equal to the number of vertices plus the number of edges.at n=21A120412
- Number of (w,x,y,z) with all terms in {1,...,n} and w<=2x and y>3z.at n=25A212514
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 73", based on the 5-celled von Neumann neighborhood.at n=39A270089
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 73", based on the 5-celled von Neumann neighborhood.at n=40A270089
- Decimal repunits written in base 7.at n=5A353146
- a(n) = Sum_{k = 0..n} (-4)^(n-k)*binomial(n,k)*binomial(2*n+k,k)*binomial(2*k,k).at n=5A363985