The sequence of highly-imperfect numbers begins with 1 and the odd primes up to 113... then even numbers appear and some odd primes are left out.
Table of n, a(n) for n=1..33.
Sequence in context: A216309 A139648 A142519 * A330366 A107694 A142312
Adjacent sequences: A053137 A053138 A053139 * A053141 A053142 A053143
Joseph L. Pe, Oct 03 2002