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A060426
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a(n) is the number of degrees in the sequence of the degrees of the irreducible representations of the symmetric group S_n that appear only once.
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0
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1, 0, 1, 1, 1, 1, 1, 2, 1, 2, 2, 3, 2
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,8
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EXAMPLE
| a(6) = 1 because the degrees for S_6 are 1,1,5,5,5,5,9,9,10,10,16 and the only number that appears once is 16.
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CROSSREFS
| Cf. A060437, A059867, A060368, A060369, A061569, A089248. [From M. F. Hasler (www.univ-ag.fr/~mhasler), Jun 14 2009]
Sequence in context: A070104 A131085 A134192 * A126305 A088431 A052304
Adjacent sequences: A060423 A060424 A060425 * A060427 A060428 A060429
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KEYWORD
| nonn
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AUTHOR
| Avi Peretz (njk(AT)netvision.net.il), Apr 05 2001
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