A098322 Recurrence sequence based on positions of digits in decimal places of Catalan's constant, G (often also called K).

0, 16, 48, 101, 421, 2374, 7728, 9449, 17685, 83666, 71168, 128130, 555251, 412816, 271385, 1111695, 1910101, 11633401, 14851698, 9668058, 43227391, 159078942

Offset: 0

Author

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

Keywords

• easy
• nonn
• base

Examples

			So for example, a(2)=16 because 16th digit of G is 0.
a(3)=48 because 16 appears at the 48th-49th digits of G, a(4)=101 because the 101st to 102nd digits of G form "48" 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. A006752 for digits of Catalan's constant.

Formula

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

Extensions

14 more terms. 159078942 does not occur within first 2 billion digits of Catalan's constant. Sean A. Irvine, Sep 02 2009