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A355213
Inverse permutation to A355212.
2
1, 2, 4, 6, 8, 3, 10, 12, 14, 7, 16, 5, 18, 11, 20, 22, 24, 13, 26, 21, 28, 30, 32, 29, 34, 36, 38, 40, 42, 35, 44, 46, 15, 23, 9, 37, 48, 50, 19, 51, 53, 39, 55, 57, 59, 31, 61, 58, 63, 65, 67, 69, 71, 66, 73, 64, 27, 41, 75, 68, 77, 45, 79, 81, 83, 80, 85
OFFSET
1,2
COMMENTS
Equivalently: lexicographically earliest sequence of distinct positive integers such that a(1) = 1, and for any m, n > 1, if abs(a(n) - a(m)) = 1, then gcd(m, n) > 1.
EXAMPLE
A355212(39) = 42 so a(42) = 39.
PROG
(PARI) See Links section.
CROSSREFS
Cf. A355212.
Sequence in context: A354721 A355506 A241012 * A064745 A304090 A218454
KEYWORD
nonn
AUTHOR
Rémy Sigrist, Jun 24 2022
STATUS
approved