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A114174 Central terms of triangle A114172 found in even-indexed rows. 4
1, 3, 16, 95, 601, 3951, 26650, 183043, 1274080, 8959268, 63512890, 453227590, 3252065077, 23443729683, 169680654790, 1232381601759, 8977925594880, 65579423363511, 480162707557696, 3523121247341469, 25899477669429042 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..20.

CROSSREFS

Cf. A114172, A114173 (row sums), A114175 (row sums-square).

Sequence in context: A323968 A074555 A137644 * A181067 A006347 A000270

Adjacent sequences:  A114171 A114172 A114173 * A114175 A114176 A114177

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Nov 15 2005

STATUS

approved

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Last modified November 18 07:22 EST 2019. Contains 329252 sequences. (Running on oeis4.)