A055591 a(n) = a(n-1)+3^a(n-1).

0, 1, 4, 85, 35917545547686059365808220080151141317128

Offset

0,3

Links

Table of n, a(n) for n=0..4.

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

Cf. A034797, A055590.

Sequence in context: A223955 A116330 A055776 * A055764 A163279 A130268

Adjacent sequences: A055588 A055589 A055590 * A055592 A055593 A055594

Keyword

easy,nonn

Author

Henry Bottomley, May 26 2000

Status

approved