A181184 | (n-th digit of Pi) - (n-th digit of phi (golden ratio)) |.

2, 5, 3, 7, 5, 6, 1, 3, 3, 5, 2, 4, 0, 1, 0, 1, 6, 1, 0, 2, 6, 2, 1, 4, 3, 5, 5, 1, 1, 1, 4, 1, 3, 6, 7, 7, 3, 6, 7, 7, 2, 6, 0, 2, 2, 0, 5, 7, 0, 6, 6, 3, 0, 4, 2, 8, 4, 1, 5, 0, 4, 1, 7, 0, 4, 0, 2, 6, 5, 6, 0, 6, 4, 6, 7, 2, 7, 0, 6, 5, 5, 1, 1, 2, 1, 2, 3, 3, 6, 2, 1, 2, 4, 7, 2, 8, 6, 1, 3, 0, 5, 0, 2, 6, 1, 4

Offset: 0

Author

Jani Melik, Jan 26 2011

Keywords

• nonn
• base

Crossrefs

Cf. A000796, A001622, A073223.

Programs

Maple

std:=105:   Digits:=2*std:
num1:=Pi:   num2:=(1+sqrt(5))/2:
A181184:=proc(n) local a, b, c, d, i, am;
a:=evalf(num1-trunc(num1),2*std):
b:=evalf(num2-trunc(num2),2*std):
am:=[ abs(trunc(num1)-trunc(num2)) ]:
for i from 0 by 1 to n do
   c:=trunc(10*a);   d:=trunc(10*b);
   a:=frac(evalf(10*a, 2*std));   b:=frac(evalf(10*b, 2*std));
   am:=[op(am),abs(c-d)]:
od: end: A181184(std);

Mathematica

Abs[RealDigits[Pi, 10, 150][[1]] - RealDigits[GoldenRatio, 10, 150][[1]]]