A046974 Partial sums of digits of decimal expansion of Pi.

3, 4, 8, 9, 14, 23, 25, 31, 36, 39, 44, 52, 61, 68, 77, 80, 82, 85, 93, 97, 103, 105, 111, 115, 118, 121, 129, 132, 134, 141, 150, 155, 155, 157, 165, 173, 177, 178, 187, 194, 195, 201, 210, 213, 222, 231, 234, 241, 246, 247, 247, 252, 260, 262

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• base
• easy

Comments

a(n) = A007953(A011545(n)). - Reinhard Zumkeller, Oct 30 2003

The partial sums to 10^k, k>=0: 4, 44, 480, 4479, 44897, 449336, 4499937, 45002885, 449989731, .... - Robert G. Wilson v, Sep 16 2007

If the sequence were to start with an initial term a(0) = 0, its first differences would reproduce the complete sequence of digits of Pi. - M. F. Hasler, Jan 19 2015

Links

• Mital Ashok, Table of n, a(n) for n = 0..999

Crossrefs

Cf. A000796, A089290.

Programs

Mathematica

Rest@ FoldList[ Plus, 0, First@ RealDigits[Pi, 10, 58]] (* Robert G. Wilson v, Sep 16 2007 *)
Accumulate[RealDigits[Pi,10,60][[1]]] (* Harvey P. Dale, Mar 11 2013 *)