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A098227 Number of primes with exactly n decimal digits which have repeated digits. 5
0, 1, 46, 551, 5834, 58667, 552131, 5006366, 44940852, 404204977, 3663002302, 33489857205, 308457624821, 2858876213963, 26639628671867, 249393770611256, 2344318816620308, 22116397130086627, 209317712988603747 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Above n=9 a[n]=A006879[n] because above 10 repetition must occur. At n=10 the sum of digits 0+1+2+3+4+5+6+7+8+9=45 is divisible by 3, so no primes with 10 distinct decimal digits exists, all primes must have repeated digits.

LINKS

Table of n, a(n) for n=1..19.

EXAMPLE

Above n=9 a[n]=A006879[n] because above 10 there must be a repetition. At n=10 the sum of digits 0+1+2+3+4+5+6+7+8+9=45 is divisible by 3, so no primes with 10 distinct decimal digits exist.

CROSSREFS

Cf. A006880, A006879, A098224-A098226.

Sequence in context: A223914 A224186 A027940 * A077732 A200898 A160151

Adjacent sequences:  A098224 A098225 A098226 * A098228 A098229 A098230

KEYWORD

base,nonn

AUTHOR

Labos Elemer, Oct 25 2004

STATUS

approved

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Last modified October 23 03:24 EDT 2014. Contains 248411 sequences.