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Search: id:A082280
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| A082280 |
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a(1) = 1, then the smallest number such that there are a(n) composite numbers between a(n) and a(n+1) both excluded. |
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+0
3
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| 1, 5, 13, 31, 71, 160, 355, 777, 1681, 3603, 7677, 16272, 34323, 72119, 151036, 315355, 656823, 1364925, 2830706, 5859765, 12110519, 24991695, 51503762, 106008953, 217946295, 447610014
(list; graph; listen)
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OFFSET
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1,2
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MATHEMATICA
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k = i = 1; Print[k]; Do[t = 0; While[t < k, i++; If[ !PrimeQ[i], t++ ]]; k = i = (i+1); Print[k], {n, 1, 25}] (Propper)
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CROSSREFS
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Cf. A082278, A082279, A082281.
Sequence in context: A067333 A118646 A097969 this_sequence A007708 A146609 A121129
Adjacent sequences: A082277 A082278 A082279 this_sequence A082281 A082282 A082283
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KEYWORD
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nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 13 2003
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EXTENSIONS
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More terms from Ryan Propper (rpropper(AT)stanford.edu), Jul 14 2005
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