A098321 Recurrence sequence based on positions of digits in decimal places of gamma, the Euler-Mascheroni constant.

0, 11, 233, 223, 1080, 2631, 19161, 318674, 269389, 609124, 97349, 125496, 2611514, 6766458, 2093818, 4312197, 4284994, 7170002, 567295, 234495, 1574091, 1722475, 6848664, 777039, 637036, 1367169, 8195403, 3747746, 21147798, 2053675, 6009248, 12095, 312755, 1205372, 15773902, 139394774, 169096914

Offset: 0

Author

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

Keywords

• easy
• nonn
• base

Examples

			So for example, a(2)=11 because 11th digit of gamma after decimal point is 0.
a(3)=233 because 233rd decimal digit of gamma is where 11 appears, a(4)=223 because 223rd to 225th digits of gamma form "233" 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. See A001620 for gamma digits.

Formula

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

Extensions

More terms from Charles R Greathouse IV, Sep 25 2008