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Jun 23, 2011 at 16:50 comment added Nemanja Following links give the answer to restriction to odd number of commas. oeis.org/… projecteuclid.org/DPubS/Repository/1.0/…
Jun 23, 2011 at 16:17 comment added Nemanja Thank you for your explanation. Actually, I have just calculated answer for small values, as Gerry Myerson suggested, and got the (almost) bijection over the OEIS, but nevertheless your explanation is valuable.
Jun 23, 2011 at 16:14 vote accept Nemanja
Jun 23, 2011 at 15:40 history answered Douglas Zare CC BY-SA 3.0