131026
domain: N
Appears in sequences
- Number of n-bead black-white reversible strings with fundamental period n.at n=18A045625
- Numbers n such that 131*2^n-1 is prime.at n=19A050591
- Number of primitive (aperiodic) reversible strings with n beads using exactly two different colors.at n=17A056318
- a(0) = 4; for n>0, a(n) = a(n-1) + 2^n - 3.at n=16A249453
- Composites whose prime factorization in base 8 is an anagram of the number in base 8.at n=30A260052
- Main diagonal of arrays A265901 and A265903.at n=12A265900
- Number of compositions of n that are not strictly increasing.at n=18A337698