The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A211877 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A211877

Number of involutions in GL(n,4).
(history; published version)

#16 by Joerg Arndt at Fri Aug 23 13:57:33 EDT 2013

STATUS

proposed

approved

#15 by Michel Marcus at Fri Aug 23 13:05:19 EDT 2013

STATUS

editing

proposed

#14 by Michel Marcus at Fri Aug 23 13:05:14 EDT 2013

NAME

Number of involutions in GL(n,4).

STATUS

approved

editing

#13 by Alois P. Heinz at Wed May 01 19:23:40 EDT 2013

STATUS

editing

approved

#12 by Alois P. Heinz at Wed May 01 19:23:26 EDT 2013

LINKS

Alois P. Heinz, <a href="/A211877/b211877.txt">Table of n, a(n) for n = 1..50</a>

STATUS

proposed

editing

#11 by R. J. Mathar at Fri Apr 26 14:01:58 EDT 2013

STATUS

editing

proposed

#10 by R. J. Mathar at Fri Apr 26 14:01:37 EDT 2013

MAPLE

A211877 := proc(n)

add( 4^(k*(n-k))*A022168(n, k), k=1..n) ;

end proc: # R. J. Mathar, Apr 26 2013

STATUS

proposed

editing

#9 by Alexander Gruber at Wed Apr 24 17:09:57 EDT 2013

STATUS

editing

proposed

Discussion

Wed Apr 24

19:48

T. D. Noe: Does your Mma code produce the n-th term?

Fri Apr 26

13:55

R. J. Mathar: According to section 3 (proposition 3) of Kutler's article in JIS vol 13 (2010) # 10.3.6 the formula sum_{k=0..n} = q^(k(n-k))*q-binomial(n,k) refers only to cases where q=4 is the power of an odd prime, which is not the case here.

#8 by Alexander Gruber at Wed Apr 24 17:09:54 EDT 2013

REFERENCES

Alexander Gruber. On an application of character sums to a theorem of Frobenius. Cincinnati, 2013.

#7 by T. D. Noe at Sat Feb 23 16:02:46 EST 2013

STATUS

proposed

editing

Discussion

Mon Feb 25

17:33

Alexander Gruber: Whoops- I did not mean to propose this one yet.  The paper won't be out for another month or so.

Wed Apr 24

12:17

OEIS Server: This sequence has not been edited or commented on for a week
yet is not proposed for review.  If it is ready for review, please
visit https://oeis.org/draft/A211877 and click the button that reads
"These changes are ready for review by an OEIS Editor."

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