237817036800
domain: N
Appears in sequences
- Integer part of denominators of nonzero terms in asymptotic expansion of the Riemann-Seigel Z-function.at n=17A050277
- Expansion of e.g.f. x^2/(1-4*x).at n=10A052670
- Analog of A095236 when the phones are arranged in a circle.at n=19A095239
- a(n) = 2^n * Product_{k=1..n} (4*k*(4*k+2))^(n-k).at n=4A168442
- A variant of payphone permutations: given a circular booth with n payphones, one of which is already occupied, a(n) is the number ways for n-1 people to choose the payphones in order, where each person chooses an unoccupied payphone such that the closest occupied payphone is as distant as possible, and a payphone adjacent to a single occupied payphone is preferred over a payphone sandwiched between two occupied payphones.at n=21A361294