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A026161
a(n) = T(2n,n+1), where T is the array in A026148.
0
2, 10, 60, 343, 1967, 11308, 65259, 378010, 2197063, 12808546, 74873071, 438719043, 2576121325, 15155321640, 89309379504, 527093971974, 3115115536016, 18433166325980, 109198600599788, 647564817644547, 3843804160133055, 22835904897612060, 135776623595204700, 807896288987793486
OFFSET
1,1
CROSSREFS
Sequence in context: A029725 A246480 A303361 * A025188 A114620 A173613
KEYWORD
nonn
EXTENSIONS
More terms from Sean A. Irvine, Sep 18 2019
STATUS
approved