18011
domain: N
Appears in sequences
- a(n+3) = 6*a(n) - 5*a(n+2), a(0) = 1, a(1) = -7, a(2) = 35.at n=6A110213
- The number of degree sequences with degree sum 2n representable by a non-separable graph (with multiple edges allowed).at n=23A147877
- Positions of zeros in A165597.at n=31A165598
- Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+2737)^2 = y^2.at n=38A201916
- Convolution of primes with odd primes.at n=21A209403
- Number of compositions of n where no consecutive parts differ by 1.at n=19A238422
- Nonsemiprimes in A306097 = A121707 \ A267999.at n=22A321488