A065570 - OEIS

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A065570

The first n ternary digits found in decimal expansion of pi form a prime.

264, 274, 322, 751, 3112 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	MATHEMATICA	`p = First[ RealDigits[ Pi, 10, 10^5]]; p = p[[ Select[ Range[10^5], p[[ # ]] == 0 \|\| p[[ # ]] == 1 \|\| p[[ # ]] == 2 & ]]]; Do[ If[ PrimeQ[ FromDigits[ Take[p, n], 3]], Print[n]], {n, 1, 4000} ]`
	CROSSREFS	`Cf. A065832.` `Sequence in context: A054802 A108823 A157828 * A050240 A105683 A160971` `Adjacent sequences: A065567 A065568 A065569 * A065571 A065572 A065573`
	KEYWORD	`nonn,base`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 30 2001`

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Last modified February 15 17:46 EST 2012. Contains 205835 sequences.