A098323 - OEIS

A098323

Recurrence sequence based on positions of digits in decimal places of 1/G, where G is Catalan's constant (also often called K).

0, 1, 3, 9, 2, 33, 27, 82, 48, 162, 279, 1140, 5727, 20729, 717726, 430977, 1112328

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OFFSET

0,3

LINKS

FORMULA

a(1)=0, p(i)=position of first occurrence of a(i) in decimal places of 1/G, a(i+1)=p(i).

EXAMPLE

1/G=1.091744063703906101454159473...

So for example, a(2)=1 because first decimal place of 1/G is 0.

a(3)=3 because 3rd decimal place of 1/G is 1, a(4)=9 because the 9th decimal place of 1/G is 3 and so on.

CROSSREFS

Other recurrence sequences: A097614 for Pi, A098266 for e, A098289 for log(2), A098290 for Zeta(3), A098319 for 1/Pi, A098320 for 1/e, A098321 for gamma, A098322 for G.

KEYWORD

more,nonn,base

AUTHOR

Mark Hudson (mrmarkhudson(AT)hotmail.com), Sep 03 2004

EXTENSIONS

a(13) from Nathaniel Johnston, Apr 30 2011

a(14)-a(16) from D. S. McNeil, Oct 01 2011

STATUS

approved