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Search: id:A114178
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A114178 Central terms of triangle A114176 found in even-indexed rows. +0
3
1, 3, 18, 135, 1083, 9219, 80631, 724080, 6601639, 61065270, 570430258, 5376309654, 51020229343, 487127706521, 4674459993450, 45056351087502, 435965482847738, 4232871507349381, 41222355832803426, 402540756184423291 (list; graph; listen)
OFFSET

0,2

CROSSREFS

Cf. A114176, A114177 (row sums), A114179 (row sums-square).

Adjacent sequences: A114175 A114176 A114177 this_sequence A114179 A114180 A114181

Sequence in context: A060909 A074545 A095776 this_sequence A005159 A118970 A003122

KEYWORD

nonn

AUTHOR

Paul D. Hanna (pauldhanna(AT)juno.com), Nov 15 2005

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.


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