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A155819
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a(n) = p(n+1)^2 + 2*p(n) + 1; p(n) is the n-th prime number and n >= 1.
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0
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14, 32, 60, 136, 192, 316, 396, 568, 888, 1020, 1432, 1756, 1932, 2296, 2904, 3588, 3840, 4612, 5176, 5472, 6388, 7048, 8088, 9588, 10396, 10812, 11656, 12096, 12988, 16356, 17416, 19032, 19596, 22480, 23100, 24952, 26884, 28216, 30264
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OFFSET
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1,1
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COMMENTS
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All the terms are even.
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LINKS
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MATHEMATICA
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#[[2]]^2+2#[[1]]+1&/@Partition[Prime[Range[40]], 2, 1] (* Harvey P. Dale, Jan 29 2021 *)
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PROG
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(PARI) a(n)=prime(n+1)^2+2*prime(n) + 1; \\ Joerg Arndt, Aug 07 2013
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CROSSREFS
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KEYWORD
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nonn,less
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AUTHOR
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Avik Roy (avik_3.1416(AT)yahoo.co.in), Jan 28 2009
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STATUS
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approved
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