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A099931
a(n) = Pell(n)*Pell(n-1)*Pell(n-2)*Pell(n-3) / 120.
1
1, 29, 1015, 34307, 1166438, 39618670, 1345902818, 45720876202, 1553165059215, 52761884311059, 1792350941301921, 60887169888069525, 2068371426604585180, 70263741326790571820, 2386898833730186862100
OFFSET
4,2
FORMULA
G.f.: x^4 / ((1-x)*(1+6x+x^2)*(1-34x+x^2)).
a(n) = 29*a(n-1) + 174*a(n-2) - 174*a(n-3) - 29*a(n-4) + a(n-5). - Klaus Purath, Oct 17 2020
CROSSREFS
Cf. A000129. Fourth column of triangle A099927.
Sequence in context: A218193 A218369 A234602 * A218635 A218239 A132058
KEYWORD
nonn,easy
AUTHOR
Ralf Stephan, Nov 03 2004
STATUS
approved