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 A304731 Restricted growth sequence transform of A246277(A304531(n)). 2
 1, 2, 3, 2, 4, 5, 6, 5, 7, 8, 2, 9, 10, 3, 11, 12, 13, 4, 14, 15, 16, 17, 18, 19, 15, 20, 21, 16, 22, 23, 24, 5, 25, 26, 7, 27, 28, 29, 6, 30, 31, 2, 32, 33, 9, 34, 35, 36, 12, 37, 38, 3, 39, 40, 10, 41, 42, 43, 11, 44, 45, 46, 47, 48, 49, 18, 50, 51, 17, 52, 53, 54, 4, 55, 56, 8, 57, 58, 59, 13, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 61, 70, 71, 14, 72 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS For all i, j: a(i) = a(j) => A304732(i) = A304732(j). LINKS Antti Karttunen, Table of n, a(n) for n = 1..74431 PROG (PARI) 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; }; A064989(n) = {my(f); f = factor(n); if((n>1 && f[1, 1]==2), f[1, 2] = 0); for (i=1, #f~, f[i, 1] = precprime(f[i, 1]-1)); factorback(f)}; A246277(n) = { if(1==n, 0, while((n%2), n = A064989(n)); (n/2)); }; 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; }; v304731 = rgs_transform(vector(76503, n, A246277(A304531(n)))); \\ Needs also code from A304531 A304731(n) = v304731[n]; CROSSREFS Cf. A246277, A304531. Differs from related A304728 for the first time at n=66, where a(66) = 18, while A304728(66) = 50. Cf. also A304535, A304732. Sequence in context: A304729 A297161 A227842 * A304728 A284318 A322791 Adjacent sequences: A304728 A304729 A304730 * A304732 A304733 A304734 KEYWORD nonn AUTHOR Antti Karttunen, May 19 2018 STATUS approved

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Last modified February 21 06:16 EST 2024. Contains 370219 sequences. (Running on oeis4.)