A104222 Number of digits in p2^p1 where p2 > p1 and (p1,p2) are twin primes.

3, 5, 13, 22, 44, 67, 106, 133, 204, 219, 294, 325, 405, 437, 453, 536, 570, 655, 689, 777, 883, 1100, 1137, 1229, 1417, 1569, 1665, 1723, 1801, 1859, 2354, 2394, 2414, 2515, 2596, 3067, 3108, 3170, 3212, 3316

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Chris Caldwell, The First 1,008 Twin Primes.

Example

5^3 = 125 and so the number of digits is 3 - which is the first term in the series.

Mathematica

IntegerLength[#[[2]]^#[[1]]]&/@Select[Partition[Prime[Range[200]], 2, 1], #[[2]]- #[[1]] ==2&] (* Harvey P. Dale, Dec 10 2015 *)

Crossrefs

Cf. A086704.

Sequence in context: A340400 A014437 A153866 * A309703 A240070 A045414

Adjacent sequences: A104219 A104220 A104221 * A104223 A104224 A104225

Keyword

nonn,base

Author

Parthasarathy Nambi, Apr 01 2005

Status

approved