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Search: id:A108814
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A108814 Numbers n such that n^4 + 4 is semiprime. +0
2
3, 5, 15, 25, 55, 125, 205, 385, 465, 635, 645, 715, 1095, 1145, 1175, 1245, 1275, 1315, 1375, 1565, 1615, 1675, 1685, 1965, 2055, 2085, 2095, 2405, 2455, 2535, 2665, 2835, 2925, 3135, 3305, 3535, 3755, 3775, 4025, 4155, 4175, 4365, 4605, 4615, 4735, 4785 (list; graph; listen)
OFFSET

1,1

COMMENT

Except for the first, all the terms above generate brilliant numbers.

CROSSREFS

Sequence in context: A146835 A146795 A166479 this_sequence A018272 A018421 A056487

Adjacent sequences: A108811 A108812 A108813 this_sequence A108815 A108816 A108817

KEYWORD

nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Jul 10 2005

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.


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