A186207 The first n-digit prime in the decimal expansion of 1/Pi.

3, 31, 379, 8861, 86183, 886183, 8861837, 98861837, 929148091, 3098861837, 83098861837, 183098861837, 8618379067153, 28724068919291, 830988618379067, 7906715377675267, 12897495334688117, 675267450287240689, 7675267450287240689, 83098861837906715377

Offset: 1

Author

Michel Lagneau, Feb 15 2011

Keywords

• nonn
• base

Comments

1/Pi = 0.31830988618379067153....

Crossrefs

Cf. A049541 A104841.

Programs

Maple

Digits := 10000: p0 := evalf(1/Pi)*10:for d from 1 to 20 do: id:=0:for i from
  0 to 50000 while(id=0) do :q0:=trunc(p0*10^(i+d-1)): x:= irem(q0,10^d): if type(x,prime)=true  and length(x)=d then printf(`%d, `,x):id:=1: else fi:od:od: