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A133417
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Sqrt( 2*(P(n)^4+16*P(n+1)^4+P(n+2)^4) ), where P() = Pell numbers A000129.
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0
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2, 8, 42, 248, 1442, 8408, 49002, 285608, 1664642, 9702248, 56548842, 329590808, 1920996002, 11196385208, 65257315242, 380347506248, 2216827722242, 12920618827208, 75306885241002, 438920692618808, 2558217270471842, 14910382930212248, 86904080310801642, 506514098934597608
(list; graph; refs; listen; history; internal format)
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