28091567594
domain: N
Appears in sequences
- Moebius transform of numbers of preferential arrangements.at n=13A006936
- E.g.f.: (exp(x)-1)^2/(2-exp(x)).at n=12A052875
- Number of length n primitive (aperiodic) palindromes with integer entries that cover an initial interval of positive integers.at n=23A327874
- Number of primitive (period n) periodic palindromes with integer entries that cover an initial interval of positive integers.at n=23A327879