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A152274
Number of 2's among the digits of all n-digit primes.
9
1, 2, 29, 359, 3515, 35666, 361054, 3647203, 36746382, 369719841, 3715552230, 37310055810, 374416981198, 3755522785108
OFFSET
1,2
KEYWORD
base,nonn
AUTHOR
Jon E. Schoenfield, Dec 01 2008
EXTENSIONS
a(12)-a(14) from Giovanni Resta, Jul 20 2015
STATUS
approved