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A280468
Length of shortest prefix of the Möbius sequence (
A008683
) containing all possible lengthn blocks that appear.
1
4, 16, 187, 245, 1326, 22025, 217076, 2214752, 25047853, 282144055, 694855331
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..11.
EXAMPLE
For n = 2 the first 16 terms of the Möbius sequence are (1,1,1,0,1,1,1,0,0,1,1,0,1,1,1,0) which contains all 9 possible length2 blocks; no shorter prefix does.
CROSSREFS
Cf.
A008683
.
Cf.
A280466
, which gives the number of distinct lengthn blocks.
Sequence in context:
A308239
A012916
A012921
*
A224802
A000513
A088027
Adjacent sequences:
A280465
A280466
A280467
*
A280469
A280470
A280471
KEYWORD
nonn
,
more
AUTHOR
Jeffrey Shallit
, Jan 03 2017
STATUS
approved
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Last modified June 8 18:04 EDT 2023. Contains 363165 sequences. (Running on oeis4.)