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A110704
Primes of form "n 42's followed by 43".
1
43, 4243, 424243, 42424243, 4242424243, 4242424242424243, 424242424242424242424242424242424243, 42424242424242424242424242424242424242424242424243
OFFSET
1,1
COMMENTS
Products of first three (77402711107), four (3283751424862167001) and five (13931066652821050218557005243) terms are Zeisel numbers (A051015) with coefficients (100,-57).
MATHEMATICA
t = 1; Do[ t = t*100 - 57; If[PrimeQ[t], Print[t]], {n, 0, 24}]
CROSSREFS
Cf. A110705.
Sequence in context: A357557 A015323 A145315 * A060485 A081795 A108837
KEYWORD
nonn
AUTHOR
Ray Chandler, Aug 04 2005
STATUS
approved