86031domain: NAppears in sequencesNumbers k such that k^4096 + (k+1)^4096 is prime.at n=30A274236Numbers k such that k-1, k and k+1 are all composite with four, five and six (not necessarily distinct) prime factors respectively.at n=23A342246Numbers k that divide the k-th little Schroeder number.at n=30A372903