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Search: id:A123642
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| 0, -1, -2, -2, 8, 88, 656, 4912, 40064, 362368, 3627776, 39914752, 478997504, 6227012608, 87178274816, 1307674335232, 20922789822464, 355687427964928, 6402373705465856, 121645100408307712, 2432902008175591424, 51090942171707342848, 1124000727777603485696
(list; graph; listen)
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OFFSET
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0,3
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COMMENT
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Difference between the number of rows in the truth tables for circuit designs involving n variables and the order of S_n (the symmetric group on n symbols).
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REFERENCES
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Audu, M. S. and Ibrahim, A. A., (2006) Discrete Mathematics With Applications (in preparation)
Ibrahim, A. A., (2006) A stable Veriety of Cayley Graphs For Efficient Interconnection Networks (submitted)
Ibrahim, A. A. and Audu, M. S., (2005) Some Group theoretic Properties of Certain class of (123) and (132)-avoiding patterns of certan numbers; An enumeration Scheme. African Journal of Natural Sciences, (to appear)
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CROSSREFS
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Adjacent sequences: A123639 A123640 A123641 this_sequence A123643 A123644 A123645
Sequence in context: A012659 A009448 A012410 this_sequence A007848 A102895 A047692
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KEYWORD
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sign
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AUTHOR
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Aminu Alhaji Ibrahim (aminualhaji(AT)yahoo.co.uk), Oct 04 2006
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