Numerator of [x^(2n+1)] in the Taylor expansion arctan(cosec(x)-cosech(x))= x/3 -x^3/81 +67*x^5/13608 -319*x^7/612360 +172747*x^9/1745960832 -...
1, 1, 67, 319, 172747, 5036627, 12689179, 142848518639, 9522619510673
2 seqfan posts
Sun Dec 18 02:36:11 CET 2011 [seqfan] Re: The Demichel errors, continued