A226704 Difference between the smallest 10^n-digit member of a twin prime pair and 10^(10^n - 1).

2, 7, 6001, 1975081, 2421018649

Offset

0,1

Links

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

G. L. Honaker, Jr. and Chris Caldwell, Prime Curios! 10000...06001 (100-digits)

Eric Weisstein's World of Mathematics, Twin Primes

Mathematica

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

Crossrefs

Cf. A001359.

Sequence in context: A144836 A174308 A088549 * A224420 A106023 A309411

Adjacent sequences: A226701 A226702 A226703 * A226705 A226706 A226707

Keyword

base,hard,more,nonn

Author

Arkadiusz Wesolowski, Jun 15 2013

Status

approved