2333520
domain: N
Appears in sequences
- a(n) = (9*n^2+3*n+1) * n!.at n=7A082036
- n and n+9 are 9-almost primes.at n=20A124946
- Number of permutations of 1..n with i-8<=p(i)<=i+7.at n=9A179354
- Number of chiral pairs of color loops of length n with exactly 4 different colors.at n=12A305543
- Number of n-bead asymmetric bracelets with exactly 4 different colored beads.at n=12A326789