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A093927 n-th root of the n-th 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 (list; graph; refs; listen; history; text; internal format)
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(n-1)^(n-1) is prime }. - M. F. Hasler, Apr 07 2009

PROG

(PARI) s=0; for( n=1, 999, t=floor(sqrtn(s, n)); until( isprime( t++^n-s), ); 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

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Last modified December 10 20:38 EST 2019. Contains 329909 sequences. (Running on oeis4.)