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

1,1

Links

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

Example

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, ...

Mathematica

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

Crossrefs

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

Sequence in context: A175090 A365166 A197113 * A073829 A003135 A105742

Adjacent sequences: A099613 A099614 A099615 * A099617 A099618 A099619

Keyword

base,easy,nonn

Author

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

Status

approved