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A273919
Number of 9-tuples of primes in arithmetic progression less than 10^n.
4
0, 0, 0, 3, 57, 984, 22551
OFFSET
1,4
REFERENCES
See A113827.
EXAMPLE
The least 9-tuple is {199, 409, 619, 829, 1039, 1249, 1459, 1669, 1879}, which is also the beginning of the least 10-tuple. This explains a(n)=0 for n<4.
CROSSREFS
Cf. A113827 (prime beginning minimal n-tuple of primes in AP).
Sequence in context: A060483 A262127 A139746 * A157929 A053725 A053774
KEYWORD
nonn,hard,more
AUTHOR
Jean-Marc Rebert, Jun 04 2016
STATUS
approved