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 A293635 Positions of superabundant numbers in the sequence of primorial products. 5
 1, 2, 3, 4, 6, 8, 11, 12, 13, 17, 20, 24, 27, 34, 36, 43, 47, 55, 67, 84, 95, 107, 112, 138, 166, 183, 211, 220, 252, 261, 264, 314, 348, 390, 406, 457, 476, 500, 582, 652, 726, 756, 839, 870, 907, 1046, 1188, 1199, 1294, 1310, 1359, 1500, 1553, 1615, 1835 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Indices of A004394 in A025487; the latter is easily seen to contain the former. LINKS Michael De Vlieger, Table of n, a(n) for n = 1..300 (first 84 terms from Robert Price). MATHEMATICA Block[{P = Product[Prime@ i, {i, 7}], s, t, u}, s = Array[DivisorSigma[1, #]/# &, P]; t = Array[If[# == 1, {0}, Sort[FactorInteger[#][[All, -1]], Greater]] &, P]; u = Values[PositionIndex@ t][[All, 1]]; Map[FirstPosition[u, #][[1]] &, FirstPosition[s, #][[1]] & /@ Union@ FoldList[Max, s]]] (* Michael De Vlieger, Oct 14 2017 *) CROSSREFS Cf. A002110, A004394, A025487. Sequence in context: A189704 A223543 A306802 * A123586 A257121 A039500 Adjacent sequences:  A293632 A293633 A293634 * A293636 A293637 A293638 KEYWORD nonn AUTHOR Allan C. Wechsler, Oct 13 2017 EXTENSIONS More terms from Michael De Vlieger, Oct 14 2017 More terms from Robert Price, Oct 19 2017 STATUS approved

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Last modified July 29 17:41 EDT 2021. Contains 346346 sequences. (Running on oeis4.)