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A124307 Sum of the digits of 5^(2^n). 1
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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified December 7 17:41 EST 2019. Contains 329847 sequences. (Running on oeis4.)