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A132260 Array T[k,n] = n-th prime p such that 2^2^k + p^2^k is prime, k>2, read by antidiagonals. 1
13, 89, 137, 29, 107, 223, 37, 59, 127, 331, 113, 53, 101, 139, 389, 113, 223, 181, 103, 173, 491 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

These were computed by Ignacio Larrosa CaƱestro, who cautions that some are only probable primes. The k=3 row is A132216. The main diagonal is A132261.

LINKS

Table of n, a(n) for n=1..21.

EXAMPLE

The array begins:

.n.|...1....2....3....4....5....6...7...8...9..10...

k=3.|..13..137..223..331..389..491.563.647.701.773...

k=4.|..89..107..127..139..173..179.229.233.349.421...

k=5.|..29...59..101..103..109..181.199.379.769.881...

k=6.|..37...53..181..491..547..619.661.677.911.941...

k=7.|.113..223.5279.7517.8039.9833...

k=8.|.113.1223.1277.1993.2399.9349.9739...

CROSSREFS

Cf. A000040, A001016, A050997, A120398, A122616, A130873, A130555, A132214, A132215, A132216.

Sequence in context: A228481 A277512 A141878 * A181508 A082099 A282858

Adjacent sequences:  A132257 A132258 A132259 * A132261 A132262 A132263

KEYWORD

more,nonn,tabl

AUTHOR

Jonathan Vos Post, Aug 15 2007

STATUS

approved

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Last modified April 4 20:53 EDT 2020. Contains 333229 sequences. (Running on oeis4.)