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A228726
Number a(n) of columns in each row of the irregular triangles in
A187800
and
A228594
.
2
1, 1, 1, 2, 1, 1, 2, 1, 2, 9, 1, 1, 3, 1, 3, 9, 1, 5, 9, 28, 1, 1, 3, 1, 3, 10, 1, 5, 11, 28, 1, 5, 12, 28
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OFFSET
1,4
LINKS
Table of n, a(n) for n=1..34.
EXAMPLE
a(9) = 9 because there are 9 elements in the 9th rows of
A187800
and
A228594
.
CROSSREFS
Sequence in context:
A153905
A327812
A319093
*
A346175
A165357
A346741
Adjacent sequences:
A228723
A228724
A228725
*
A228727
A228728
A228729
KEYWORD
nonn
AUTHOR
Christopher Hunt Gribble
, Aug 31 2013
STATUS
approved
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Last modified September 12 16:36 EDT 2024. Contains 375853 sequences. (Running on oeis4.)