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A025573 a(n) = T(2n,n-1), where T is the array defined in A025564. 0
1, 4, 19, 98, 526, 2892, 16159, 91338, 520794, 2989688, 17256275, 100046894, 582204290, 3398722420, 19894375665, 116724946350, 686260868346, 4042058735880, 23846068472626, 140882925528892, 833421929615236, 4936088399361876, 29266184138206509, 173689743532678182 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..24.

CROSSREFS

Sequence in context: A217217 A083315 A301417 * A006194 A047099 A211855

Adjacent sequences:  A025570 A025571 A025572 * A025574 A025575 A025576

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from Sean A. Irvine, Sep 07 2019

STATUS

approved

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Last modified January 19 21:47 EST 2020. Contains 331066 sequences. (Running on oeis4.)