11545611
domain: N
Appears in sequences
- Number of ZnS polytypes that repeat after n layers.at n=30A011957
- (2^(p-1)-1)/(3*p) where p = prime(n).at n=8A096060
- Reduced numerators of 2*(2^(1+n)-1)/(1+n)/(2+n).at n=29A116419
- Number of 6-elements orbits of S3 action on irreducible polynomials of degree n > 1 over GF(2).at n=29A165921
- Least number k such that k*n+1 is a prime dividing 2^n-1.at n=60A186283
- Number of inequivalent colorful necklaces.at n=30A306888
- Number of n-bead necklace structures with beads of exactly three colors and no adjacent beads having the same color.at n=30A327397