19562
domain: N
Appears in sequences
- Numbers k such that the continued fraction for sqrt(k) has period 61.at n=30A020400
- a(n) is the difference between A084321(n) and the (n-1)th power of 2.at n=29A085355
- Antidiagonal sums of array A089975.at n=11A089976
- Number of minimum dominating sets for the n X n knight graph.at n=17A103315
- The number of identity elements of length n in Z*Z^2.at n=8A199044
- Expansion of Product_{k>=1} (1 + x^(2*k - 1))^(k^2).at n=21A294749
- E.g.f. A(x) satisfies A(x) = 1 + 2 * (exp(x) - 1) * A(exp(x) - 1).at n=5A355083
- G.f.: Sum_{k>=0} 2^k * x^(k*(k+1)) / Product_{j=1..k} (1 - x^j).at n=53A376947