A099616 Sum of the first n decimal places of Catalan's constant 0.9159655941772... (sequence A006752).

9, 10, 15, 24, 30, 35, 40, 49, 53, 54, 61, 68, 70, 71, 80, 80, 81, 86, 86, 91, 95, 101, 101, 104, 109, 110, 114, 123, 126, 128, 131, 139, 143, 144, 145, 145, 152, 159, 163, 164, 168, 177, 180, 187, 191, 193, 201, 202, 208, 215, 217, 218, 221, 225, 227, 233, 239

Offset: 1

Author

Mark Hudson (mrmarkhudson(AT)hotmail.com), Oct 25 2004

Keywords

• base
• easy
• nonn

Examples

			Catalan's constant = 0.9159655941772... so the sums are 9, 9+1, 9+1+5, 9+1+5+9, 9+1+5+9+6..., leading to the terms 9, 10, 15, 24, 30, ...
		

Links

• G. C. Greubel, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A006752 for digits of Catalan's constant. Similarly constructed sequences for other constants at A099541 and sequence references therein.

Programs

Mathematica

Accumulate[RealDigits[N[Catalan,60]][[1]]] (* Harvey P. Dale, May 10 2011 *)