Search: id:A053498
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%I A053498
%S A053498 1,1,2,4,16,56,256,1072,11264,78976,672256,4653056,49810432,433429504,
%T A053498 4448608256,39221579776,607251736576,7244686764032,101611422797824,
%U A053498 1170362064019456,19281174853615616,261583327556386816,4084459360167657472
%N A053498 Number of degree-n permutations of order dividing 8.
%D A053498 L. Moser and M. Wyman, On solutions of x^d = 1 in symmetric groups, Canad. 
               J. Math., 7 (1955), 159-168.
%D A053498 R. P. Stanley, Enumerative Combinatorics, Cambridge, Vol. 2, 1999; see 
               Example 5.2.10.
%F A053498 exp(x+1/2*x^2+1/4*x^4+1/8*x^8).
%Y A053498 Cf. A000085, A001470, A001472, A053495-A053505, A005388.
%Y A053498 Sequence in context: A153948 A010362 A001472 this_sequence A005388 A053503 
               A153957
%Y A053498 Adjacent sequences: A053495 A053496 A053497 this_sequence A053499 A053500 
               A053501
%K A053498 nonn
%O A053498 0,3
%A A053498 N. J. A. Sloane (njas(AT)research.att.com), Jan 15 2000

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