A364284 - OEIS

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A364284

Numbers k such that A261627(k) = 1.

%I #21 Aug 27 2023 16:28:49

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

%N Numbers k such that A261627(k) = 1.

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

%H Zhi-Wei Sun, <a href="https://arxiv.org/abs/1211.1588">Conjectures involving primes and quadratic forms</a>, arXiv:1211.1588 [math.NT], 2012-2015.

%Y Cf. A261627, A261628.

%K nonn

%O 1,1

%A _Jud McCranie_, Aug 26 2023