123253
domain: N
Appears in sequences
- Numbers n such that 279*2^n-1 is prime.at n=35A050898
- Numerator of Bernoulli(n, -7/9).at n=4A158970
- a(n) = 2*a(n-1) + 2*a(n-2) + a([n/2]), where a(0) = 1, a(1) = 1, a(2) = 1.at n=13A298417
- Numbers k such that A334943(k) = 1.at n=31A335773
- a(n) is the sum of distinct sums of all subsets with two or more elements of {1, 2, ..., n}.at n=31A375764