A094408 a(n) = Sum_{k = 0..n} 3^k*A085707(n,k).
1, 1, 4, 37, 631, 17266, 692785, 38325925, 2795925136, 260056965205, 30038178784699, 4218296308789630, 707778995370264001, 139840360858571766121
Offset: 0
Crossrefs
Cf. A085707.
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