A239006 Difference between the smallest 10^n-digit member of a cousin prime pair and 10^(10^n - 1).

2, 93, 22857, 5352807, 24204297

Offset

0,1

Links

Table of n, a(n) for n=0..4.

G. L. Honaker, Jr. and Chris Caldwell, Prime Curios! 10000...22857 (100-digits)

Eric Weisstein's World of Mathematics, Cousin Primes

Mathematica

lst = {}; Do[s = 10^(10^n - 1); n = NextPrime[s]; While[! PrimeQ[n + 4], n = NextPrime[n]]; AppendTo[lst, n - s], {n, 0, 2}]; lst

Crossrefs

Cf. A023200.

Sequence in context: A042057 A214542 A137322 * A248627 A290936 A287611

Adjacent sequences: A239003 A239004 A239005 * A239007 A239008 A239009

Keyword

nonn,base,hard,more

Author

Arkadiusz Wesolowski, Mar 08 2014

Status

approved