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A026706
T(2n,n-2), T given by A026703.
0
1, 8, 48, 261, 1358, 6907, 34683, 172827, 857077, 4237179, 20904293, 102987450, 506887889, 2493127016, 12256531946, 60233878032, 295941325816, 1453755559520, 7140344796458, 35067449154442, 172209614883062, 845642719001622
OFFSET
2,2
CROSSREFS
Sequence in context: A002697 A285063 A026761 * A128734 A006321 A371620
KEYWORD
nonn
STATUS
approved