30023
domain: N
Appears in sequences
- Base-4 numbers whose list of divisors (in base 4) contains each digit 0-3 the same number of times.at n=5A045813
- a(n) = 8*a(n-1) + a(n-2) for n>2, with a(0)=1, a(1)=7, a(2)=56.at n=5A155197
- Triangular array read by rows: T(n,k) is the number of partial permutations of {1,2,...,n} that have exactly k cycles, 0<=k<=n.at n=30A216294