

A093927


nth root of the nth partial sum of A093355.


3



2, 2, 3, 4, 47, 28, 71, 80, 57, 52, 77, 62, 75, 154, 243, 236, 183, 448, 341, 380, 603, 508, 411, 1060, 837, 686, 765, 658, 569, 506, 479, 588, 1315, 2826, 3709, 2964, 2585, 2536, 2139, 1876, 1643, 1656, 1405, 1824, 1739, 1624, 1557, 1462, 1775, 1936, 1809, 1762
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..52.


FORMULA

a(n) = (Sum_{k=1..n} A093355(k))^(1/n) = min { k in N  k^n  a(n1)^(n1) is prime }.  M. F. Hasler, Apr 07 2009


PROG

(PARI) s=0; for( n=1, 999, t=floor(sqrtn(s, n)); until( isprime( t++^ns), ); print1(t, ", "); s=t^n) \\ M. F. Hasler, Apr 07 2009


CROSSREFS

Cf. A093355.
Cf. A093928.
Sequence in context: A022405 A309895 A270744 * A067088 A065519 A329792
Adjacent sequences: A093924 A093925 A093926 * A093928 A093929 A093930


KEYWORD

nonn


AUTHOR

Amarnath Murthy, Apr 25 2004


EXTENSIONS

More terms from Ray G. Opao, Nov 29 2004
More terms from David Wasserman, Mar 06 2007


STATUS

approved



