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Numbers k such that A336957(k) is even and less than k.
2

%I #10 Jan 26 2021 03:38:49

%S 31,35,39,63,67,71,75,79,83,87,91,95,99,119,123,146,158,187,198,215,

%T 218,223,227,231,234,239,255,279,283,307,311,315,331,335,339,343,346,

%U 347,351,354,355,359,363,367,370,371,375,378,379,383,387,390,391,395,402,403,407,411,415,418

%N Numbers k such that A336957(k) is even and less than k.

%H N. J. A. Sloane, <a href="/A338068/b338068.txt">Table of n, a(n) for n = 1..20000</a>

%Y Cf. A336957, A338062-A338069.

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Oct 19 2020