A253907 -id:A253907 - cp's OEIS frontend

A059582 First differences give digits of Pi = 3.1415926...

1, 4, 5, 9, 10, 15, 24, 26, 32, 37, 40, 45, 53, 62, 69, 78, 81, 83, 86, 94, 98, 104, 106, 112, 116, 119, 122, 130, 133, 135, 142, 151, 156, 156, 158, 166, 174, 178, 179, 188, 195, 196, 202, 211, 214, 223, 232, 235, 242, 247, 248, 248, 253, 261, 263, 263, 272

Offset: 0

Rodolfo Kurchan, Feb 17 2001

A more natural variant is given by A046974, the partial sums of the digits of Pi (A000796). Maybe the present version is motivated by the coincidence that the first four digits 1,4,5,9 are similar to the decimals .14159 of Pi. - M. F. Hasler, Jan 19 2015

Harry J. Smith, Table of n, a(n) for n = 0..2000
A. Frank & P. Jacqueroux, International Contest, 2001. Item 14

Cf. A253906, A253907.

Digits := 200: it := evalf(Pi, 200)/10: out := 1: for i from 1 to 200 do printf(`%d,`,out): out := out+floor(10*it): it := 10*it-floor(10*it): od:

Accumulate[Join[{1},RealDigits[Pi,10,60][[1]]]] (* Harvey P. Dale, Jan 18 2015 *)

{ default(realprecision, 2080); a=1; x=Pi/10; for (n=0, 2000, d=floor(x); x=(x-d)*10; write("b059582.txt", n, " ", a+=d)); } \\ Harry J. Smith, Jun 28 2009

More terms from James Sellers, Feb 19 2001

cp's OEIS Frontend

A059582 First differences give digits of Pi = 3.1415926...

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