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A145381
Prime numbers p such that p^2 is a concatenation of decimal representations of m and m-1 for some integer m.
2
9901, 99990001, 999999000001, 9999999900000001, 811451682377384625400019885321, 666809750614092756440997454321145572124297
OFFSET
1,1
LINKS
CROSSREFS
Prime elements of A054216.
Sequence in context: A205350 A187868 A072848 * A212401 A252227 A252622
KEYWORD
base,nonn
AUTHOR
Max Alekseyev, Oct 09 2008
STATUS
approved