A364284 Numbers k such that A261627(k) = 1.

5, 7, 10, 11, 12, 19, 22, 30, 34, 44, 46, 72, 142

Offset

1,1

Comments

Conjectured to be the only numbers k such that A261627(k) = 1. No other terms < 1.2 * 10^12.

Links

Table of n, a(n) for n=1..13.

Zhi-Wei Sun, Conjectures involving primes and quadratic forms, arXiv:1211.1588 [math.NT], 2012-2015.

Crossrefs

Cf. A261627, A261628.

Sequence in context: A323004 A264349 A320114 * A059485 A028786 A282391

Adjacent sequences: A364281 A364282 A364283 * A364285 A364286 A364287

Keyword

nonn

Author

Jud McCranie, Aug 26 2023

Status

approved