262654
domain: N
Appears in sequences
- a(n) = 2*(2^n + 1)*(2^(n+1) - 1).at n=8A005367
- Number of n-bead black-white reversible strings with fundamental period n.at n=19A045625
- Number of reversible strings with n beads using exactly two different colors.at n=18A056309
- Number of primitive (aperiodic) reversible strings with n beads using exactly two different colors.at n=18A056318
- Length of the n-th Zimin word (A082215(n)).at n=17A123121