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 A005660 If k appears so do 2k+2 and 3k+3. (duplicates omitted.) (Formerly M2716) 3
 3, 8, 12, 18, 26, 27, 38, 39, 54, 56, 57, 78, 80, 81, 84, 110, 114, 116, 117, 120, 158, 162, 164, 165, 170, 171, 174, 222, 230, 234, 236, 237, 242, 243, 246, 255, 318, 326, 330, 332, 333, 342, 344, 345, 350, 351, 354, 363, 446, 462, 470, 474, 476, 477, 486 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 REFERENCES N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). LINKS Seiichi Manyama, Table of n, a(n) for n = 1..10000 R. K. Guy, Letter to N. J. A. Sloane with attachment, 1982 EXAMPLE From Seiichi Manyama, Feb 29 2024: (Start) 59049, 88574 and 177150 are terms and 177150 = 2*88574 + 2 = 3*59049 + 3. 80553, 120830 and 241662 are terms and 241662 = 2*120830 + 2 = 3*80553 + 3. 167913, 251870 and 503742 are terms and 503742 = 2*251870 + 2 = 3*167913 + 3. (End) CROSSREFS Cf. A005662. Sequence in context: A219635 A063225 A213238 * A086813 A287081 A352814 Adjacent sequences: A005657 A005658 A005659 * A005661 A005662 A005663 KEYWORD nonn,easy AUTHOR N. J. A. Sloane EXTENSIONS More terms from Larry Reeves (larryr(AT)acm.org), Oct 01 2001 STATUS approved

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Last modified June 25 02:03 EDT 2024. Contains 373691 sequences. (Running on oeis4.)