89784domain: NAppears in sequencesNumbers k such that k-th and (k+1)-st term of A038593 differ by 4.at n=23A038635Integers k such that there are i groups of order k+i up to isomorphism, for i=1,2,3.at n=42A373649Integers k such that there are i groups of order k+i up to isomorphism, for i=1,2,3,4.at n=4A373650