A065993 Numbers k such that the first k base-6 digits of Pi (A004605) expressed in decimal forms a prime.

1, 3, 78

Offset: 1

Author

Robert G. Wilson v, Dec 10 2001

Keywords

• base
• bref
• nonn
• more

Examples

			The first 3 senary digits of Pi (A004605) are 305 = 113 in decimal, which is a prime.
		

Crossrefs

Cf. A004605.

Programs

Mathematica

Do[ If[ PrimeQ[ FromDigits[ First[ RealDigits[Pi, 6, n]], 6]], Print[n]], {n, 1, 2585} ]