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A025572 a(n) = T(4n,n), where T is the array defined in A025564. 0
1, 4, 34, 330, 3381, 35700, 384307, 4193020, 46203670, 513011312, 5730482707, 64324536822, 724966763955, 8198552413800, 92985865982415, 1057267681773972, 12047638469222921, 137547814582468048, 1573060924386848400, 18017644508154675426, 206653990802794950415 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..21.

CROSSREFS

Sequence in context: A005569 A232910 A208215 * A093137 A214693 A107350

Adjacent sequences:  A025569 A025570 A025571 * A025573 A025574 A025575

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from Sean A. Irvine, Sep 07 2019

STATUS

approved

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Last modified January 18 05:09 EST 2020. Contains 330995 sequences. (Running on oeis4.)