A053140 Odd primes that are not highly-imperfect numbers.

181, 241, 251, 257, 263, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653

Offset

1,1

Comments

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.

Links

Table of n, a(n) for n=1..52.

Crossrefs

Cf. A074918.

Sequence in context: A216309 A139648 A142519 * A330366 A107694 A142312

Adjacent sequences: A053137 A053138 A053139 * A053141 A053142 A053143

Keyword

nonn

Author

Joseph L. Pe, Oct 03 2002

Extensions

More terms from Sean A. Irvine, Dec 11 2021

Status

approved