A306588 Numbers k such that A002182(k)-1 is prime.

3, 4, 5, 6, 8, 9, 11, 12, 13, 14, 15, 16, 19, 20, 21, 28, 30, 31, 37, 39, 40, 45, 52, 55, 65, 66, 67, 68, 70, 79, 81, 84, 101, 108, 118, 131, 132, 136, 143, 148, 149, 151, 163, 170, 174, 185, 191, 200, 203, 208, 212, 231, 259, 261, 286, 289, 297, 317, 326, 327

Offset: 1

Author

Dmitry Kamenetsky, Mar 02 2019

Keywords

• nonn

Links

• Amiram Eldar, Table of n, a(n) for n = 1..1331
• Benny Lim, Prime Numbers Generated From Highly Composite Numbers, Parabola Magazine, volume 54, issue 3, 2018.

Crossrefs

Cf. A002182 (highly composite numbers), A072826, A306587.

Extensions

More terms from Daniel Suteu, Mar 02 2019