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Numbers k such that A026166(k) = A026142(k) - 2.
1

%I #14 Jul 04 2021 13:45:00

%S 2,6,12,18,21,30,36,39,48,54,57,63,66,75,84,90,93,102,108,111,117,120,

%T 129,138,144,147,156,162,165,171,174,183,189,192,198,201,210,219,225,

%U 228,237,246,252,255,264,270,273,279,282,291

%N Numbers k such that A026166(k) = A026142(k) - 2.

%Y Cf. A026142, A026166.

%K nonn

%O 1,1

%A _Clark Kimberling_

%E Title corrected by _Sean A. Irvine_, Sep 22 2019