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Search: id:A123122
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| A123122 |
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a(n) = 5*i + 7*j for some nonnegative integers i and j. |
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+0
1
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| 0, 5, 7, 10, 12, 14, 15, 17, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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The only numbers not of this form belong to the finite set {1, 2, 3, 4, 6, 8, 9, 11, 13, 16, 18, 23}. - Robert G. Wilson v
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EXAMPLE
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a(7) = 17 because 5*2 + 7*1 = 17
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MAPLE
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k:=array(0..47); n:=0; for i from 0 to 7 do for j from 0 to 5 do k[n] := 5*i + 7*j; n:=n+1; end do; end do; for i from 0 to 47 do for j from 0 to 47 do if(k[i] < k[j]) then temp:=k[j]; k[j]:=k[i]; k[i]:=temp; end if; end do; end do; print(k);
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MATHEMATICA
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Take[Union@ Flatten@ Table[5i + 7j, {i, 0, 35}, {j, 0, 25}], 70] (* Robert G. Wilson v *)
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CROSSREFS
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Sequence in context: A088707 A129415 A075275 this_sequence A138366 A129189 A066513
Adjacent sequences: A123119 A123120 A123121 this_sequence A123123 A123124 A123125
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KEYWORD
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nonn
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AUTHOR
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Ben Thurston (benthurston27(AT)yahoo.com), Sep 29 2006
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EXTENSIONS
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Corrected and extended by Robert G. Wilson v Sep 30 2006
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