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 A318839 Restricted growth sequence transform of A318838. 4
 1, 1, 2, 2, 3, 2, 4, 5, 6, 3, 7, 8, 9, 4, 10, 11, 12, 6, 13, 10, 14, 7, 15, 16, 17, 9, 18, 14, 19, 10, 20, 21, 22, 12, 23, 24, 25, 13, 26, 27, 28, 14, 29, 22, 30, 15, 31, 32, 33, 17, 34, 26, 35, 18, 36, 37, 38, 19, 39, 40, 41, 20, 42, 43, 44, 22, 45, 34, 46, 23, 47, 48, 49, 25, 50, 38, 51, 26, 52, 53, 54, 28, 55, 56, 57, 29, 58, 59, 60, 30, 61, 46, 62, 31, 63 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS For all i, j: a(i) = a(j) => A000010(i) = A000010(j). LINKS Antti Karttunen, Table of n, a(n) for n = 1..65537 PROG (PARI) up_to = 65537; rgs_transform(invec) = { my(om = Map(), outvec = vector(length(invec)), u=1); for(i=1, length(invec), if(mapisdefined(om, invec[i]), my(pp = mapget(om, invec[i])); outvec[i] = outvec[pp] , mapput(om, invec[i], i); outvec[i] = u; u++ )); outvec; }; A007431(n) = sumdiv(n, d, moebius(n/d)*eulerphi(d)); A318838(n) = { my(m=1); fordiv(n, d, if((A007431(d)!=0), m *= prime(A007431(d)))); (m); }; v318839 = rgs_transform(vector(up_to, n, A318838(n))); A318839(n) = v318839[n]; CROSSREFS Cf. A000010, A007431, A318838. Cf. also A318837. Sequence in context: A097004 A324343 A328474 * A304105 A305978 A305985 Adjacent sequences:  A318836 A318837 A318838 * A318840 A318841 A318842 KEYWORD nonn AUTHOR Antti Karttunen, Sep 05 2018 STATUS approved

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Last modified October 20 18:19 EDT 2019. Contains 328269 sequences. (Running on oeis4.)