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A087294 Primes resulting from A087293. 1
113, 613, 24421, 2042221, 60731221, 102975601, 253102501, 327449641, 722798221, 2284271641, 46414646521, 57358506301, 89249322541, 129933236221, 185045469601, 215232948901, 323617365541, 554037063901, 732039110041, 2373042229801, 3076710505441, 3443735055601 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..22.

EXAMPLE

113 is in the sequence because ((prime(2)*prime(3))^2 + 1)/2 = ((3*5)^2 + 1)/2 = 113 is prime.

CROSSREFS

Cf. A086893, A087293.

Sequence in context: A142024 A300964 A077287 * A152928 A185337 A300921

Adjacent sequences:  A087291 A087292 A087293 * A087295 A087296 A087297

KEYWORD

nonn

AUTHOR

Ray Chandler, Aug 31 2003

EXTENSIONS

Offset changed to 1 and more terms from Jinyuan Wang, Aug 06 2021

STATUS

approved

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Last modified October 25 17:13 EDT 2021. Contains 348255 sequences. (Running on oeis4.)