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 A074495 a(n) = the first prime > sigma(n). 0
 2, 5, 5, 11, 7, 13, 11, 17, 17, 19, 13, 29, 17, 29, 29, 37, 19, 41, 23, 43, 37, 37, 29, 61, 37, 43, 41, 59, 31, 73, 37, 67, 53, 59, 53, 97, 41, 61, 59, 97 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE The first prime > sigma(6) = 12 is 13, so a(6) = 13. MATHEMATICA p[n_] := Module[{r, i}, r = 2; i = 1; While[r <= n, i = i + 1; r = Prime[i]]; r]; Table[p[DivisorSigma[1, n]], {n, 1, 40}] CROSSREFS Sequence in context: A184443 A132295 A086651 * A081467 A194119 A084721 Adjacent sequences:  A074492 A074493 A074494 * A074496 A074497 A074498 KEYWORD easy,nonn AUTHOR Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Sep 26 2002 STATUS approved

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