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Search: id:A022451
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| A022451 |
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a(1) = 3; a(n+1) = a(n)-th composite. |
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3
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| 3, 8, 15, 25, 38, 55, 77, 105, 140, 183, 235, 298, 372, 462, 566, 692, 838, 1007, 1205, 1432, 1698, 2002, 2352, 2755, 3210, 3731, 4322, 4990, 5747, 6601, 7562, 8638, 9854, 11211, 12731, 14422, 16315, 18425, 20765, 23372, 26258, 29460, 32998, 36912, 41229
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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C. Kimberling, Fractal sequences and interspersions, Ars Combinatoria, vol. 45 p 157 1997.
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LINKS
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C. Kimberling, Interspersions
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MATHEMATICA
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g[ n_Integer ] := (k = n + PrimePi[ n ] + 1; While[ k - PrimePi[ k ] - 1, k++ ]; k); NestList[ g, 3, 45 ]
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CROSSREFS
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Cf. A006508, A022450, A025010, A025011.
Sequence in context: A164003 A067998 A060615 this_sequence A080181 A071399 A001208
Adjacent sequences: A022448 A022449 A022450 this_sequence A022452 A022453 A022454
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KEYWORD
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nonn
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AUTHOR
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Clark Kimberling (ck6(AT)evansville.edu)
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