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A026130
T(4n,n), where T is the array in A026120.
0
1, 3, 29, 286, 2954, 31331, 338237, 3697641, 40803750, 453553098, 5070709436, 56958466285, 642318632219, 7267415064770, 82459118104869, 937909185029935, 10690839598092195, 122090330159822364, 1396616783648701671, 16000093859781395335, 183548792680080355470
OFFSET
0,2
CROSSREFS
Cf. A026120.
Sequence in context: A162928 A124263 A180828 * A026159 A025186 A140780
KEYWORD
nonn
EXTENSIONS
More terms from Sean A. Irvine, Sep 17 2019
STATUS
approved