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k in S implies 2k-2, 3k-3 in S.
(Formerly M3779)
2

%I M3779 #36 Mar 01 2024 09:35:52

%S 5,8,12,14,21,22,26,33,39,40,42,50,60,63,64,75,76,78,82,96,98,114,117,

%T 118,123,124,126,147,148,150,154,162,177,186,189,190,194,222,225,226,

%U 231,232,234,243,244,246,250,285,291,292,294,298,306,322,339,348,351

%N k in S implies 2k-2, 3k-3 in S.

%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

%H Seiichi Manyama, <a href="/A005661/b005661.txt">Table of n, a(n) for n = 1..10000</a>

%H R. K. Guy, <a href="/A005658/a005658.pdf">Letter to N. J. A. Sloane with attachment, 1982</a>

%e From _Seiichi Manyama_, Feb 29 2024: (Start)

%e 663, 994 and 1986 are terms and 1986 = 2*994 - 2 = 3*663 - 3.

%e 3159, 4738 and 9474 are terms and 9474 = 2*4738 - 2 = 3*3159 - 3.

%e 18711, 28066 and 56130 are terms and 56130 = 2*28066 - 2 = 3*18711 - 3. (End)

%Y Cf. A005659.

%K nonn

%O 1,1

%A _N. J. A. Sloane_

%E More terms from Larry Reeves (larryr(AT)acm.org), Oct 01 2001