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A214642
Indices of b in the sequence a -> abc, b -> ab, c -> b . Start with a.
3
2, 5, 6, 8, 11, 13, 15, 18, 19, 21, 24, 26, 29, 31, 34, 35, 37, 40, 42, 44, 47, 48, 50, 53, 55, 58, 59, 61, 64, 66, 69, 70, 72, 75, 77, 79, 82, 83, 85, 88, 90, 93, 95, 98, 99, 101, 104, 106, 108, 111, 112, 114, 117, 119, 122, 123
OFFSET
1,1
COMMENTS
Indices of 2 in A214640.
EXAMPLE
a ->abc -> abcabb -> abcabbabcabab -> abcabbabcabababcabbabcababcab -> ...
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Philippe Deléham, Jul 24 2012
STATUS
approved