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A135250 a(n) = number of digits in decimal expansion of A046967(n). 1
1, 1, 5, 32, 348, 4520, 76840, 1459949, 33578823 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

All numbers in A046967(n) are the form 2^k

LINKS

Table of n, a(n) for n=1..9.

MATHEMATICA

a = {}; c = 2; Do[d = Length[IntegerDigits[c, 10]]; c = c^Prime[n]; AppendTo[a, d], {n, 2, 9}]; a

IntegerLength/@RecurrenceTable[{a[1]==2, a[n]==a[n-1]^Prime[n]}, a[n], {n, 9}] (* Harvey P. Dale, Jul 18 2011 *)

CROSSREFS

Cf. A046967, A135249.

Sequence in context: A109780 A093448 A094653 * A006926 A185136 A014374

Adjacent sequences:  A135247 A135248 A135249 * A135251 A135252 A135253

KEYWORD

base,nonn

AUTHOR

Artur Jasinski, Nov 24 2007

EXTENSIONS

a(9) from Harvey P. Dale, Jul 18 2011

STATUS

approved

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Last modified April 18 16:45 EDT 2019. Contains 322209 sequences. (Running on oeis4.)