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 A304757 Restricted growth sequence transform of A046523(A304755(n)). 2
 1, 2, 3, 2, 4, 5, 6, 4, 5, 7, 8, 9, 10, 8, 9, 7, 11, 3, 2, 4, 12, 13, 3, 14, 8, 11, 12, 4, 15, 16, 3, 2, 4, 12, 13, 3, 14, 8, 11, 12, 4, 15, 17, 3, 13, 18, 13, 19, 12, 20, 8, 14, 21, 14, 8, 22, 23, 12, 19, 24, 3, 2, 4, 12, 13, 3, 14, 8, 11, 12, 4, 15, 16, 13, 3, 12, 19, 18, 13, 21, 14, 20, 19, 12, 25, 26, 27, 28, 29, 30, 26, 31, 32, 33, 4, 5, 6, 15, 12, 4 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Antti Karttunen, Table of n, a(n) for n = 1..65537 PROG (PARI) A046523(n) = { my(f=vecsort(factor(n)[, 2], , 4), p); prod(i=1, #f, (p=nextprime(p+1))^f[i]); }; \\ From A046523 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; }; v304757 = rgs_transform(vector(up_to, n, A046523(A304755(n)))); \\ Needs also code from A304755 A304757(n) = v304757[n]; CROSSREFS Cf. A046523, A304755. Compare also to the scatter plots of A304098, A304729, A304730 and A304732. Sequence in context: A297157 A304492 A305303 * A140503 A304732 A304729 Adjacent sequences: A304754 A304755 A304756 * A304758 A304759 A304760 KEYWORD nonn AUTHOR Antti Karttunen, May 21 2018 STATUS approved

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Last modified February 26 01:31 EST 2024. Contains 370335 sequences. (Running on oeis4.)