A168608 Decimal expansion of average of two-digit primes.

4, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6

Offset

2,1

Comments

Primes between 10 and 100: 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, the number of which is 21, and their sum is 1043. Therefore: 1043/21 = 49.66666666666666666666666666666666...

Links

Table of n, a(n) for n=2..106.

Mathematica

RealDigits[Mean[Prime[Range[PrimePi[11], PrimePi[99]]]], 10, 120][[1]] (* Harvey P. Dale, May 02 2013 *)

Crossrefs

Cf. A000040.

Sequence in context: A200414 A347215 A248866 * A200383 A199513 A360004

Adjacent sequences: A168605 A168606 A168607 * A168609 A168610 A168611

Keyword

cons,nonn,base,less

Author

Zak Seidov, Dec 01 2009

Status

approved