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A227522
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Values of n such that L(19) and N(19) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.
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2
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-123, -221, -255, -311, 487, -561, 709, -1055, 1273, -1425, -1475, -1767, 1833, -1893, 2127, -2391, -2475, -2595, 2769, -2895, -3053, -3183, -3543, -3627, 3765, 3919, 4069, -4113, 4203, 4315, 4609, -4953, 5175, 5347, 5413, -5657, 6117, -6515, -6585, -6597, -6833, 6915
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OFFSET
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1,1
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COMMENTS
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Computed with PARI using commands similar to those used to compute A226921.
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LINKS
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CROSSREFS
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KEYWORD
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sign,easy
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AUTHOR
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STATUS
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approved
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