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 A328619 Inverse permutation of A328618. 4
 1, 2, 9, 4, 125, 18, 2401, 8, 3, 250, 1771561, 36, 62748517, 4802, 1125, 16, 118587876497, 6, 6131066257801, 500, 21609, 3543122, 21914624432020321, 72, 5, 125497034, 27, 9604, 8629188747598184440949, 2250, 727423121747185263828481, 32, 15944049, 237175752994, 300125, 12, 624931990990842127748277129373, 12262132515602, 564736653, 1000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Antti Karttunen, Table of n, a(n) for n = 1..707 PROG (PARI) A328619(n) = { my(f = factor(n), m, q); for(k=1, #f~, q = (f[k, 2]\f[k, 1]); m = (f[k, 2]%f[k, 1]); if(m&&(f[k, 1]!=2), f[k, 2] = q*f[k, 1] + lift(Mod(m, f[k, 1])/2))); factorback(f); }; CROSSREFS Cf. A328617, A328618. Sequence in context: A210423 A003725 A292952 * A076930 A309926 A011068 Adjacent sequences:  A328616 A328617 A328618 * A328620 A328621 A328622 KEYWORD nonn,mult AUTHOR Antti Karttunen, Oct 23 2019 STATUS approved

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Last modified December 7 22:29 EST 2019. Contains 329850 sequences. (Running on oeis4.)