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A053095 Number of primes having exactly same digits as appear in first n primes. 2
1, 1, 1, 8, 62, 568, 5370, 114546, 2898058, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

a(n) = 0 if sum of digits is a multiple of three (see A103208). - Chandler

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

a(4)=8 because the first three prime n, concatenated, are 2+3+5+7 or 2357. There are 8 prime arrangements: 2357 2753 3257 3527 5237 5273 7253 7523.

CROSSREFS

Cf. A054260, A053160, A053161, A103208.

Sequence in context: A190975 A287815 A244831 * A099335 A194930 A132506

Adjacent sequences:  A053092 A053093 A053094 * A053096 A053097 A053098

KEYWORD

base,nonn,more

AUTHOR

Enoch Haga, Mar 19 2000

EXTENSIONS

a(7)-a(9) from Ray Chandler, Apr 07 2010

a(10) from Ray Chandler, Apr 08 2010

STATUS

approved

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Last modified August 24 00:29 EDT 2017. Contains 291052 sequences.