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Search: id:A059830
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| 1, 4, 85, 820, 4369, 16276, 47989, 120100, 266305, 538084, 1010101, 1786324, 3006865, 4855540, 7568149, 11441476, 16843009, 24221380, 34117525, 47176564, 64160401, 85961044, 113614645, 148316260, 191435329, 244531876, 309373429
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OFFSET
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0,2
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FORMULA
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a(n) = (n^2+1)*(n^4+1) = A002522(n)*A002523(n) = A002522(n)*A002522(n^2). a(n) = (n^8-1)/(n^2-1) = -A024006(n)/A067998(n+1), n>1. - Alexander Adamchuk (alex(AT)kolmogorov.com), Apr 13 2006
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MATHEMATICA
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Table[(n^2+1)*(n^4+1), {n, 0, 40}] - Alexander Adamchuk (alex(AT)kolmogorov.com), Apr 13 2006
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CROSSREFS
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Cf. A059839.
Cf. A002522, A002523, A024006, A067998.
Sequence in context: A012076 A109901 A015018 this_sequence A116330 A055776 A055591
Adjacent sequences: A059827 A059828 A059829 this_sequence A059831 A059832 A059833
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KEYWORD
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nonn
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AUTHOR
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njas, Feb 25 2001
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