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Search: id:A123865
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| 0, 15, 80, 255, 624, 1295, 2400, 4095, 6560, 9999, 14640, 20735, 28560, 38415, 50624, 65535, 83520, 104975, 130320, 159999, 194480, 234255, 279840, 331775, 390624, 456975, 531440, 614655, 707280, 809999, 923520, 1048575, 1185920, 1336335
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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a(n) mod 5 = 0 iff n mod 5 > 0: a(A008587(n)) = 4; a(A047201(n)) = 0; a(n) mod 5 = 4*(1-A079998(n)).
A129292(n) = number of divisors of a(n) that are not greater than n. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 09 2007
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MAPLE
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with (combinat):seq(fibonacci(3, n^2)-2, n=1..34); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 25 2008
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PROGRAM
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(Other) sage: [lucas_number1(3, n^2, 1) for n in xrange(1, 35)]# [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Nov 20 2009]
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CROSSREFS
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Cf. A024002, A000583, A005563, A123866, A123867, A123868.
Sequence in context: A085808 A033594 A059377 this_sequence A024002 A050149 A055815
Adjacent sequences: A123862 A123863 A123864 this_sequence A123866 A123867 A123868
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KEYWORD
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nonn,new
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AUTHOR
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Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 16 2006
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