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A086607
Main diagonal of triangle A086606: the n-th term of the n-th self-convolution of the sequence formed by flattening triangle A086606.
2
1, 2, 9, 32, 140, 630, 2870, 13256, 61389, 286710, 1346004, 6351516, 30088071, 142997456, 681498600, 3255674016, 15585877627, 74752865964, 359121640259, 1727811098500, 8323912135434, 40149494252802, 193868148499388, 937055479499472, 4533362484840700
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Table of n, a(n) for n=1..25.
CROSSREFS
Cf. A086606, A086608 (row sums).
Sequence in context: A045630 A075364 A026526 * A150913 A150914 A150915
Adjacent sequences: A086604 A086605 A086606 * A086608 A086609 A086610
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Jul 23 2003
STATUS
approved

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Last modified April 12 18:42 EDT 2026. Contains 394620 sequences.
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