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A105463
The 10^n-th irregular prime.
1
37, 257, 1669, 22349, 294001, 3553267, 41892163, 481303351
OFFSET
0,1
FORMULA
a(n) = A000928(A011557(n)) = A000928(10^n). - Amiram Eldar, Mar 05 2019
MATHEMATICA
ip={ the list of irregular primes to 12 million }; Table[ ip[[10^n]], {n, 0, 5}]
CROSSREFS
KEYWORD
hard,nonn,more
AUTHOR
Robert G. Wilson v, Apr 07 2005
EXTENSIONS
Offset changed and a(6)-a(7) added by Amiram Eldar, Mar 05 2019
STATUS
approved