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A318957 Numbers k such that A194113(k) is a prime. 0
1, 13, 26, 29, 31, 44, 45, 50, 66, 69, 102, 106, 125, 177, 182, 183, 196, 198, 230, 238, 266, 278, 279, 287, 291, 299, 309, 315, 333, 334, 338, 343, 347, 367, 385, 390, 398, 415, 423, 431, 436, 451, 455, 458, 473, 487, 491, 493, 512, 517, 518, 522, 529, 539, 542, 545, 557, 566, 589 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..59.

EXAMPLE

For k=1, A194113(1)=3;

for k=13, A194113(13)=281;

for k=26, A194113(26)=1097.

PROG

(PARI) isok(n) = isprime(sum(k=1, n, floor(k*sqrt(10)))); \\ Michel Marcus, Sep 26 2018

CROSSREFS

Cf. A194113.

Sequence in context: A297279 A095781 A037974 * A180055 A346003 A164007

Adjacent sequences:  A318954 A318955 A318956 * A318958 A318959 A318960

KEYWORD

nonn

AUTHOR

Marius A. Burtea, Sep 24 2018

STATUS

approved

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Last modified January 28 23:12 EST 2022. Contains 350670 sequences. (Running on oeis4.)