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A056004 Initial step in Goodstein sequences, i.e. g(3) if g(2)=n: write n in hereditary representation base 2, bump to base 3, then subtract 1. 8
0, 2, 3, 26, 27, 29, 30, 80, 81, 83, 84, 107, 108, 110, 111, 7625597484986, 7625597484987, 7625597484989, 7625597484990, 7625597485013, 7625597485014, 7625597485016, 7625597485017, 7625597485067, 7625597485068, 7625597485070 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

LINKS

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics (1).

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics (2).

EXAMPLE

a(18)=7625597484989 since 18=2^(2^2)+2^1 which when bumped from 2 to 3 becomes 3^(3^3)+3^1=76255974849890 and when 1 is subtracted gives 7625597484989

CROSSREFS

Sequence in context: A060371 A130975 A002748 * A032812 A099006 A041659

Adjacent sequences:  A056001 A056002 A056003 * A056005 A056006 A056007

KEYWORD

nonn

AUTHOR

Henry Bottomley (se16(AT)btinternet.com), Aug 04 2000

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Last modified February 16 02:30 EST 2012. Contains 205860 sequences.