
1, 1, 2, 3, 7, 4, 13, 6, 15, 11, 22, 12, 25, 18, 28, 20, 34, 22, 42, 27, 44, 34, 48, 35, 55, 38, 59, 44, 62, 47, 69, 49, 72, 55, 81, 57, 87, 65, 90, 70, 98, 72, 103, 79, 105, 83, 113, 84, 117, 91, 122, 94, 129, 98, 133, 104, 137, 107, 145, 110, 148, 117, 152
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OFFSET

0,3


COMMENTS

A "convoluted recurrence".


LINKS

Table of n, a(n) for n=0..62.
J.P. Allouche and J. Shallit, The ring of kregular sequences, Theoretical Computer Sci., 98 (1992), 163197.
J.P. Allouche and J. Shallit, The ring of kregular sequences, II, Theoret. Computer Sci., 307 (2003), 329.
Math Stackexchange, convoluted recurrence: f(2n)=f(n)+f(n+1)+n,f(2n+1)=f(n)+f(n1)+1, November 30 2014.


CROSSREFS

Sequence in context: A168085 A287950 A287628 * A320948 A086885 A324598
Adjacent sequences: A319860 A319861 A319862 * A319864 A319865 A319866


KEYWORD

nonn


AUTHOR

Jeffrey Shallit, Sep 29 2018


STATUS

approved

