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A307747
Terms in A307720 in order of appearance.
3
1, 2, 3, 4, 5, 7, 6, 8, 9, 10, 11, 13, 12, 14, 15, 17, 19, 16, 18, 23, 29, 20, 21, 24, 25, 26, 27, 22, 28, 30, 31, 37, 35, 33, 41, 43, 47, 53, 49, 39, 45, 32, 34, 36, 38, 59, 61, 55, 51, 57, 56, 58, 67, 71, 62, 63, 65, 64, 46, 48, 40, 44, 42, 50, 52, 54, 73
OFFSET
1,2
LINKS
Rémy Sigrist, Colored scatterplot of the first 10000 terms (red pixels correspond to prime terms)
EXAMPLE
The first terms of A307720 are (with periodic parts in parentheses):
1,1,2,(1,3)*2,(2,2)*2,(2,3)*3,(3,3)*4,3,(4,2)*4,(4,3)*6,(5,1)*3,(7,1)*3,7,...
* * * * * *
The terms marked with a star give the sequence:
1, 2, 3, 4, 5, 7,...
PROG
(C++) See Links section.
CROSSREFS
Cf. A307720.
Sequence in context: A122313 A130988 A069769 * A347758 A154439 A154440
KEYWORD
nonn
AUTHOR
Rémy Sigrist, Apr 26 2019
STATUS
approved