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A028683
Pseudo Galois numbers for d=21.
1
1, 420, 81496800, 6988909668048000, 264339188251171547754240000, 4409145118315866486641282521305984000000, 32432910584848683243891703579686352553931989191680000000
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OFFSET
0,2
LINKS
Vincenzo Librandi,
Table of n, a(n) for n = 0..27
FORMULA
a(n) = d^n * product(d^n - d^k, k=0..n-1).
MATHEMATICA
FoldList[ #1*21^#2 (21^#2-1)&, 1, Range[ 20 ] ]
CROSSREFS
Sequence in context:
A046167
A059951
A225992
*
A198163
A014890
A159589
Adjacent sequences:
A028680
A028681
A028682
*
A028684
A028685
A028686
KEYWORD
nonn
AUTHOR
Olivier Gérard
STATUS
approved
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Last modified August 30 00:57 EDT 2024. Contains 375520 sequences. (Running on oeis4.)