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Search: id:A114946
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| A114946 |
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Number of monic irreducible polynomials over GF(4) of degree <= n. |
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+0
2
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| 4, 10, 30, 90, 294, 964, 3304, 11464, 40584, 145338, 526638, 1924378, 7086598, 26259388, 97842104, 366273464, 1376854004, 5194587924, 19661846184, 74637375132, 284068160592, 1083712790142, 4143223406562, 15871346734402
(list; graph; listen)
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OFFSET
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1,1
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MAPLE
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with (numtheory): b:= n-> add (mobius(d) *4^(n/d)/n, d=divisors(n)): a:= n-> add (b(k), k=1..n): seq (a(n), n=1..30); [From Alois P. Heinz (heinz(AT)hs-heilbronn.de), Sep 23 2008]
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CROSSREFS
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Partial sums of (which sequence?).
Partial sums of A027377. 4th column of A143328. [From Alois P. Heinz (heinz(AT)hs-heilbronn.de), Sep 23 2008]
Sequence in context: A036674 A006357 A047088 this_sequence A001551 A067142 A145453
Adjacent sequences: A114943 A114944 A114945 this_sequence A114947 A114948 A114949
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KEYWORD
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nonn
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AUTHOR
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Gary L Mullen (mullen(AT)math.psu.edu) and Ken Hicks, Jan 06 2006
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EXTENSIONS
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More terms from Alois P. Heinz (heinz(AT)hs-heilbronn.de), Sep 23 2008
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