A124307 Sum of the digits of 5^(2^n).

5, 7, 13, 25, 58, 106, 166, 430, 805, 1510, 3190, 6415, 12595, 25963, 51457, 102283, 205744, 412918, 825961, 1649851, 3297091, 6593902, 13191169, 26388961, 52772314, 105541459, 211045936

Offset

0,1

Links

Table of n, a(n) for n=0..26.

Mathematica

Table[ Plus @@ IntegerDigits[5^(2^n)], {n, 0, 26}]

Crossrefs

Cf. A124306, A119666.

Sequence in context: A262958 A155757 A027674 * A158294 A090610 A230115

Adjacent sequences: A124304 A124305 A124306 * A124308 A124309 A124310

Keyword

base,nonn

Author

Robert G. Wilson v, Sep 30 2006

Status

approved