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A108056
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Numbers of the form (7^i)*(13^j).
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8
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1, 7, 13, 49, 91, 169, 343, 637, 1183, 2197, 2401, 4459, 8281, 15379, 16807, 28561, 31213, 57967, 107653, 117649, 199927, 218491, 371293, 405769, 753571, 823543, 1399489, 1529437, 2599051, 2840383, 4826809, 5274997, 5764801, 9796423
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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PROG
| (PARI) list(lim)=my(v=List(), N); for(n=0, log(lim)\log(13), N=13^n; while(N<=lim, listput(v, N); N*=7)); vecsort(Vec(v)) \\ Charles R Greathouse IV, Jun 28 2011
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CROSSREFS
| Cf. A003586, A003592, A003593, A003591, A003594, A003595, A003596, A003597, A003598, A003599, A107326, A107364, A107466.
Sequence in context: A134039 A166703 A116522 * A018562 A112540 A193489
Adjacent sequences: A108053 A108054 A108055 * A108057 A108058 A108059
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KEYWORD
| nonn
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AUTHOR
| Douglas Winston (douglas.winston(AT)srupc.com), Jun 02 2005
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