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Search: id:A004050
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| A004050 |
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Numbers of the form 2^a + 3^b. |
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+0
2
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| 2, 3, 4, 5, 7, 9, 10, 11, 13, 17, 19, 25, 28, 29, 31, 33, 35, 41, 43, 59, 65, 67, 73, 82, 83, 85, 89, 91, 97, 113, 129, 131, 137, 145, 155, 209, 244, 245, 247, 251, 257, 259, 265, 275, 283, 307, 337, 371, 499, 513, 515, 521, 539, 593, 730, 731, 733, 737, 745, 755
(list; graph; listen)
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OFFSET
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1,1
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MAPLE
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lincom:=proc(a, b, n) local i, j, s, m; s:={}; for i from 0 to n do for j from 0 to n do m:=a^i+b^j; if m<=n then s:={op(s), m} fi od; od; lprint(sort([op(s)])); end: lincom(2, 3, 760); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Feb 24 2007
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CROSSREFS
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Sequence in context: A160718 A122090 A066050 this_sequence A123538 A092999 A077154
Adjacent sequences: A004047 A004048 A004049 this_sequence A004051 A004052 A004053
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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More terms from Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Jan 02 2003
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