[seqfan] Re: A191301

[Heinz, Alois]

seems to be correct:

1,seq((2*n-1)!*coeff(series(exp(x*arcsin(x)),x,2*n+3),x,2*n), n=1..10);
gives:
1, 1, 4, 49, 1303, 63513, 5044601, 598488981, 99463522845, 
22073876512113, 6308016788410641
or
1+add(a(n)*x^(2*n)/(2*n-1)!, n=1..5);
gives
1+x^2+2/3*x^4+49/120*x^6+1303/5040*x^8+7057/40320*x^10
and
series(exp(x*arcsin(x)), x, 11);
gives
1+x^2+2/3*x^4+49/120*x^6+1303/5040*x^8+7057/40320*x^10+O(x^12)

Best regards, Alois

Am 03.03.2013 13:24, schrieb Harvey P. Dale:
> 	There is something wrong with the definition (Name) of this sequence.
> 	Best,
> 	Harvey
>