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A194128 (Partial sums of the squarefree integers) that are prime. 1

%I #13 Oct 21 2019 11:24:18

%S 3,11,17,521,647,1327,9437,14153,16141,16831,17299,18013,21839,24029,

%T 28429,30293,31247,32213,35201,36929,37991,42013,46643,51481,55259,

%U 61837,65951,67349,70663,72109,78553,89017,90647,91193

%N (Partial sums of the squarefree integers) that are prime.

%C Select from the partial sums of the squarefree integers those partial sums that are prime.

%H Amiram Eldar, <a href="/A194128/b194128.txt">Table of n, a(n) for n = 1..10000</a>

%t Select[ Accumulate@ Select[ Range@ 550, SquareFreeQ], PrimeQ]

%Y Cf. A005117, A173143.

%K easy,nonn

%O 1,1

%A _Robert G. Wilson v_, Aug 15 2011

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Last modified April 19 04:35 EDT 2024. Contains 371782 sequences. (Running on oeis4.)