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A248706 Central terms of triangle A248600. 1
1, 8, 576, 48320, 5118400, 598123008, 75243589344, 9951304416768, 1366687981264320 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
COMMENTS
a(n) is divisible by C(2*n,n).
LINKS
EXAMPLE
Triangle A248600 begins:
[1],
[14, 8, 2],
[786, 1056, 576, 96, 6],
[61340, 131760, 117900, 48320, 9540, 720, 20],
[5562130, 16481920, 20917120, 13847680, 5118400, 1025920, 105280, 4480, 70],
[549676764, 2079579600, 3444581700, 3165926400, 1755532800, 598123008, 123656400, 14716800, 926100, 25200, 252], ...
CROSSREFS
Cf. A248600.
Sequence in context: A275932 A058045 A086641 * A325292 A326552 A303933
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Oct 12 2014
STATUS
approved

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Last modified May 24 23:50 EDT 2024. Contains 372782 sequences. (Running on oeis4.)