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A369294 Lexicographically earliest sequence of distinct positive integers such that a(1) = 1, a(2) = 2, a(3) = 3, and for any n > 3, A091255(a(n), a(n-2)) <> 1 and A091255(a(n), a(n-1)) = 1. 2
1, 2, 3, 4, 5, 8, 9, 16, 7, 6, 21, 10, 35, 12, 13, 14, 23, 22, 15, 11, 17, 44, 27, 26, 29, 28, 33, 32, 31, 18, 155, 20, 81, 24, 127, 30, 49, 34, 69, 36, 173, 40, 19, 39, 38, 43, 42, 25, 45, 50, 51, 52, 53, 56, 57, 62, 63, 64, 65, 74, 71, 37, 46, 251, 48, 79 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
This sequence is a variant of the Yellowstone permutation (A098550).
Is this a permutation of the positive integers?
LINKS
Rémy Sigrist, PARI program
PROG
(PARI) See Links section.
CROSSREFS
See A369293 for a similar sequence.
Sequence in context: A354829 A085152 A264886 * A287117 A286431 A015931
KEYWORD
nonn,base
AUTHOR
Rémy Sigrist, Jan 18 2024
STATUS
approved

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Last modified July 24 20:07 EDT 2024. Contains 374585 sequences. (Running on oeis4.)