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A172374
The first number generating n primes through the concatenation of numbers increasing in minimal increments in the quickest way.
0
2, 278, 1826, 4498070, 2645182700
OFFSET
1,1
COMMENTS
Analogous to A152396 with increments replacing decrements.
EXAMPLE
278279 and 278279280281 are prime and no number <278 gives primes when treated similarly. Concatenation of 2, 4, 8, 10, and 14 numbers give primes beginning with 2645182700.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
James G. Merickel, Feb 01 2010
STATUS
approved