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A113606 Binary power sequence: a(n) = a(n-1) + 2^a(n-2). 0
1, 1, 3, 5, 13, 45, 8237, 35184372097069 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

The ninth term is too large to show here.

LINKS

Table of n, a(n) for n=1..8.

MATHEMATICA

RecurrenceTable[{a[1]==a[2]==1, a[n]==a[n-1]+2^a[n-2]}, a, {n, 8}] (* Harvey P. Dale, May 06 2012 *)

CROSSREFS

Cf. A000225.

Sequence in context: A057188 A128548 A321358 * A209002 A106879 A249762

Adjacent sequences:  A113603 A113604 A113605 * A113607 A113608 A113609

KEYWORD

nonn

AUTHOR

Matt Wynne (mattwyn(AT)verizon.net), Aug 25 2008

STATUS

approved

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Last modified August 21 05:32 EDT 2019. Contains 326162 sequences. (Running on oeis4.)