29727129600
domain: N
Appears in sequences
- Successive numerators of Wallis's approximation to Pi/2 (unreduced).at n=13A001900
- Denominators of coefficients of odd powers of x of the expansion of Bessel function J_1(x).at n=6A002474
- Denominators in the series for Bessel function J8(x).at n=2A061407
- a(n) is the denominator of the polynomial in e^2 giving the (2n)th du Bois Reymond constant.at n=10A085466
- 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=20A361294