99151
domain: N
Appears in sequences
- n sets a record for the number of primes in {n, f(n), f(f(n)), ..., 1}, where f is the Collatz function defined by f(x) = x/2 if x is even; f(x) = 3x + 1 if x is odd.at n=16A078373
- Number of compositions (ordered partitions) of n into distinct parts such that number of parts is odd.at n=35A332304
- E.g.f.: 1 / (2 + x^2/2 - exp(x)).at n=8A337058