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A055591
a(n) = a(n-1)+3^a(n-1).
2
0, 1, 4, 85, 35917545547686059365808220080151141317128
OFFSET
0,3
FORMULA
a(n) = A055591(n-1)+A055590(n)
EXAMPLE
a(3) = 4+3^4 = 4+81 = 85
MATHEMATICA
NestList[#+3^#&, 0, 4] (* Harvey P. Dale, Apr 18 2012 *)
CROSSREFS
Sequence in context: A223955 A116330 A055776 * A055764 A163279 A130268
KEYWORD
easy,nonn
AUTHOR
Henry Bottomley, May 26 2000
STATUS
approved