106742domain: NAppears in sequencesValues A such that p=prime(n) satisfies binomial(2p-1, p-1) == 1 + A*p (mod p^4).at n=15A260209Number of nonempty subsets of {1, ..., n} containing no three cyclically successive elements.at n=19A306357Number of (marked) cyclic n-bit binary strings containing no runs of length > 3.at n=18A316699