61935domain: NAppears in sequencesExpansion of 1 / (1 - x - x^3 + x^6) in powers of x.at n=39A193771Numbers k such that prime(k) divides primorial(j) + 1 for exactly three integers j.at n=8A283928a(n) is the number of permutations pi of [n] that avoid {231,321} so that pi^4 avoids 132.at n=20A368299