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Search: id:A093468
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| A093468 |
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a(1) = 1, a(2) = 2; for n >= 2, a(n+1) = a(n) + Sum {a(n)-a(i), i = 1 to n}. |
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2
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| 1, 2, 3, 6, 18, 78, 438, 2958, 23118, 204558, 2018958, 21977358, 261478158, 3374988558, 46964134158, 700801318158, 11162196262158, 189005910310158, 3390192763174158, 64212742967590158, 1280663747055910158
(list; graph; listen)
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OFFSET
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1,2
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FORMULA
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a(n) = A014288(n-1)+1. - Vladeta Jovovic (vladeta(AT)eunet.rs), Apr 08 2004
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MATHEMATICA
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a[1] = 1; a[2] = 2; a[n_] := a[n] = a[n - 1] + Sum[a[n - 1] - a[i], {i, n - 1}]; Table[ a[n], {n, 21}] (from Robert G. Wilson v Apr 08 2004)
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CROSSREFS
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Cf. A093467.
Sequence in context: A083563 A038056 A072241 this_sequence A114302 A000304 A000614
Adjacent sequences: A093465 A093466 A093467 this_sequence A093469 A093470 A093471
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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 07 2004
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EXTENSIONS
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More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 08 2004
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