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A103189 Number of divisors of prime p concatenated p times. 0
4, 6, 8, 8, 96, 64, 64, 8, 64, 256, 32, 128, 128, 256, 64 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

Number of divisors of 22 is 4, so the first term is 4.

Number of divisors of 333 is 6, so the second term is 6.

Number of divisors of 55555 is 8, so the third term is 8.

MATHEMATICA

Table[DivisorSigma[0, FromDigits[Flatten[IntegerDigits/@Table[Prime[n], {Prime[n]}]]]], {n, 15}] (* Harvey P. Dale, Jul 04 2014 *)

CROSSREFS

Sequence in context: A104173 A023991 A183005 * A083786 A199976 A165957

Adjacent sequences:  A103186 A103187 A103188 * A103190 A103191 A103192

KEYWORD

nonn,base

AUTHOR

Parthasarathy Nambi, Mar 18 2005

EXTENSIONS

More terms from Harvey P. Dale, Jul 04 2014

STATUS

approved

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Last modified May 27 22:57 EDT 2017. Contains 287210 sequences.