%I A001252 M2092 N0827
%S A001252 2,16,134,1164,10982,112354,1245676,14909340,191916532,2646066034,
%T A001252 38932027996
%N A001252 Number of permutations of length n by length of runs.
%D A001252 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A001252 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A001252 F. N. David, M. G. Kendall and D. E. Barton, Symmetric Function and Allied 
               Tables, Cambridge, 1966, p. 262.
%Y A001252 Sequence in context: A002576 A037727 A037622 this_sequence A067058 A002302 
               A056662
%Y A001252 Adjacent sequences: A001249 A001250 A001251 this_sequence A001253 A001254 
               A001255
%K A001252 nonn
%O A001252 4,1
%A A001252 N. J. A. Sloane (njas(AT)research.att.com).