A182392 Numbers n for which there exists only composite number k such that A060715(k) = n and 2*k-1 is prime, but A104272(n) differs from A080359(n).

3, 8, 36, 55, 58, 83, 129, 134, 143, 155, 186, 197, 207, 218, 269, 295, 309, 310, 361, 362, 380, 396, 412, 454, 466, 473, 505, 511, 514, 544, 549, 556, 563, 616, 631, 660, 666, 677, 683, 697, 771, 781, 788, 797, 812, 873, 874, 881, 883, 894, 906, 953

Offset: 1

Author

Vladimir Shevelev and Peter J. C. Moses, Apr 27 2012

Keywords

• nonn

Comments

There exists a prime p=p(n) such that 2*p-1 is prime and A060715(p)=a(n)-1 (cf. comment in A182391).

Crossrefs

Cf. A104272, A080359, A164554, A193507, A194184, A194186, A194217, A182366, A182391.