82989
domain: N
Appears in sequences
- Number of primes between (prime(n + 1))^Pi and (prime(n))^Pi.at n=29A137380
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (-1, 1, 1), (0, -1, 0), (1, 0, 0), (1, 1, -1)}.at n=10A148736
- a(n) = T(n, 4) with T(n, k) = Sum_{d|k} phi(d)*binomial(n - 1 + k/d, k/d).at n=36A327032