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A248113
Number of subsets of {1,...,n} containing n and having at least one set partition into 4 blocks with equal element sum.
1
1, 2, 6, 14, 37, 88, 218, 515, 1226, 2848, 6566, 14997, 33483, 74406, 162422, 351621, 751171, 1594028
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OFFSET
7,2
LINKS
Table of n, a(n) for n=7..24.
EXAMPLE
a(7) = 1: {1,2,3,4,5,6,7}> 16/25/34/7.
a(8) = 2: {1,2,3,5,6,7,8}> 17/26/35/8, {1,2,3,4,5,6,7,8}> 18/27/36/45.
CROSSREFS
Column k=4 of
A248112
.
Sequence in context:
A006653
A171924
A144530
*
A339985
A026598
A006864
Adjacent sequences:
A248110
A248111
A248112
*
A248114
A248115
A248116
KEYWORD
nonn
,
more
AUTHOR
Alois P. Heinz
, Oct 01 2014
STATUS
approved
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Last modified August 15 05:59 EDT 2024. Contains 375172 sequences. (Running on oeis4.)