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A030391
a(n)=least k such that base 4 representation of n begins at s(k), where s=
A030386
.
0
1, 2, 3, 11, 5, 1, 9, 19, 8, 15, 2, 3, 10, 18, 25, 75, 31, 11, 63, 30, 5, 6, 47, 33, 7, 14, 1, 36, 9, 22, 72, 123, 34, 82, 19, 62, 46, 13, 8, 81, 58, 15, 16, 2, 70, 17, 24, 27, 3, 85, 133, 10, 49, 68, 21, 18, 61, 109, 23, 26, 73, 121, 25, 427, 176
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..65.
CROSSREFS
Sequence in context:
A332661
A031335
A084743
*
A244496
A039654
A075240
Adjacent sequences:
A030388
A030389
A030390
*
A030392
A030393
A030394
KEYWORD
nonn
AUTHOR
Clark Kimberling
STATUS
approved