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A000659
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a(n) = 2^a(n-1) + a(n-2).
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1
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OFFSET
| 0,4
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COMMENTS
| The next term has 5171655948 digits. [From Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Jul 03 2009]
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MATHEMATICA
| Join[{a=0, b=0}, Table[c=2^b+a; a=b; b=c, {n, 5}]] (* From Vladimir Joseph Stephan Orlovsky, Apr 13 2011 *)
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CROSSREFS
| Cf. A000643.
Sequence in context: A192222 A000665 A058882 * A164919 A063443 A133473
Adjacent sequences: A000656 A000657 A000658 * A000660 A000661 A000662
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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