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A078460 Initial n digits in decimal portion of the Traveling Salesman constant (A073008) form a prime number. 0
1, 2, 20, 26, 351, 425, 696 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(5), a(6) and a(7) certified prime with Primo.

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

a(2)=2 since 71 is prime.

CROSSREFS

Cf. A073008.

Sequence in context: A154546 A108342 A136903 * A059208 A268742 A261460

Adjacent sequences:  A078457 A078458 A078459 * A078461 A078462 A078463

KEYWORD

more,nonn,base

AUTHOR

Jason Earls, Dec 31 2002

STATUS

approved

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Last modified December 12 15:11 EST 2019. Contains 329960 sequences. (Running on oeis4.)