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Search: id:A132260
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| A132260 |
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Array T[k,n] = n-th prime p such that 2^2^k + p^2^k is prime, k>2, read by antidiagonals. |
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+0
2
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| 13, 89, 137, 29, 107, 223, 37, 59, 127, 331, 113, 53, 101, 139, 389, 113, 223, 181, 103, 173, 491
(list; table; graph; listen)
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OFFSET
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1,1
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COMMENT
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These were computed by Ignacio Larrosa Canestro (ilarrosa(AT)mundo-r.com), who cautions that some are only probable primes. The k=3 row is A132216. The main diagonal is A132261.
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EXAMPLE
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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...
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CROSSREFS
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Cf. A000040, A001016, A050997, A120398, A122616, A130873, A130555, A132214, A132215, A132216.
Sequence in context: A037060 A000836 A141878 this_sequence A082099 A026912 A057788
Adjacent sequences: A132257 A132258 A132259 this_sequence A132261 A132262 A132263
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KEYWORD
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more,nonn,tabl
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AUTHOR
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Jonathan Vos Post (jvospost3(AT)gmail.com), Aug 15 2007
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