A383415 Antidiagonal sums of A383414.
7, 43, 195, 811, 3283, 13179, 52771, 211147, 844659, 3378715, 13514947, 54059883, 216239635, 864958651, 3459834723, 13839339019, 55357356211, 221429424987, 885717700099, 3542870800555, 14171483202387, 56685932809723, 226743731239075, 906974924956491, 3627899699826163
Offset: 0
Links
- Index entries for linear recurrences with constant coefficients, signature (6,-9,4).
Crossrefs
Cf. A383414.
Programs
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Mathematica
a[n_]:=(29*4^(n+1) - 24*n - 53)/9; Array[a,25,0]
Formula
a(n) = (29*4^(n+1) - 24*n - 53)/9.
G.f.: (7 + x)/((1 - 4*x)*(1 - x)^2).
E.g.f.: exp(x)*(116*exp(3*x) - 24*x - 53)/9.