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A366805 Lexicographically earliest infinite sequence such that a(i) = a(j) => A366803(i) = A366803(j) for all i, j >= 0. 4
1, 2, 2, 2, 2, 3, 2, 4, 2, 5, 6, 3, 2, 4, 4, 4, 2, 7, 8, 5, 9, 10, 5, 5, 2, 4, 3, 4, 4, 11, 4, 3, 2, 12, 13, 7, 10, 14, 7, 15, 16, 17, 18, 10, 7, 15, 9, 5, 2, 4, 3, 4, 5, 5, 4, 3, 4, 6, 8, 11, 4, 3, 3, 3, 2, 19, 10, 12, 16, 20, 12, 19, 21, 22, 23, 14, 12, 19, 10, 15, 24, 25, 26, 17, 27, 26, 17, 24, 12, 19, 14, 15 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
COMMENTS
Restricted growth sequence transform of A366803.
The scatter plot has quite interesting structure.
LINKS
PROG
(PARI)
\\ Needs also program from A366803:
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; };
v366805 = rgs_transform(vector(1+up_to, n, A366803(n-1)));
A366805(n) = v366805[1+n];
CROSSREFS
Cf. also A366796, A366802.
Sequence in context: A302791 A334868 A305979 * A293223 A361514 A029348
KEYWORD
nonn,look
AUTHOR
Antti Karttunen, Oct 26 2023
STATUS
approved

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Last modified May 30 18:38 EDT 2024. Contains 372971 sequences. (Running on oeis4.)