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A168320 a(-1)=0. a(n)=a(n-1)^2+2^n. 0
1, 3, 13, 177, 31345, 982509057, 965324047087029313, 931850515884481186273153523321252097, 868345383954173723655205051633111454677692184821907897236578371826897665 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..8.

MATHEMATICA

a=0; Table[a=a^2+2^n, {n, 0, 11}]

RecurrenceTable[{a[-1]==0, a[n]==a[n-1]^2+2^n}, a, {n, 10}] (* Harvey P. Dale, Jun 12 2014 *)

CROSSREFS

Sequence in context: A239979 A261361 A114317 * A323134 A081299 A117808

Adjacent sequences:  A168317 A168318 A168319 * A168321 A168322 A168323

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Nov 22 2009

EXTENSIONS

Definition corrected - R. J. Mathar, Nov 24 2009

STATUS

approved

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Last modified May 19 07:24 EDT 2019. Contains 323386 sequences. (Running on oeis4.)