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A229073 Least m >= 2 such that m^p - (m - 1)^p is composite for p = prime(n) but no smaller prime p. 1
5, 6, 4, 3, 2, 6525, 809652229 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Equivalently, least m such that A087896(m) = prime(n).

There are no other terms <= 10^9.

LINKS

Table of n, a(n) for n=1..7.

MATHEMATICA

Table[m = 2; While[! And @@ Table[PrimeQ[m^Prime[i] - (m-1)^Prime[i]], {i, n-1}] || PrimeQ[m^Prime[n] - (m-1)^Prime[n]], m++]; m, {n, 6}] (* T. D. Noe, Sep 12 2013 *)

CROSSREFS

Cf. A087896.

Sequence in context: A064206 A087197 A221216 * A019818 A187146 A128632

Adjacent sequences:  A229070 A229071 A229072 * A229074 A229075 A229076

KEYWORD

nonn,hard

AUTHOR

Eric M. Schmidt, Sep 12 2013

STATUS

approved

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Last modified January 20 02:48 EST 2022. Contains 350467 sequences. (Running on oeis4.)