1489488domain: NAppears in sequencesFermat coefficients.at n=30A000971Numbers that can be expressed as the difference of the squares of primes in exactly thirteen distinct ways.at n=23A092009Number of symmetric 11-ary factorizations of the n-cycle (1,2...n).at n=12A192893a(n) = binomial(11*n+1,n)/(11*n+1).at n=6A230388