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A049216 Scaled coefficients of (arctanh x)^5. 1


%S 1,70,6384,804320,136804096,30459752960,8632830664704,

%T 3041109959196672,1305140879116763136,670935549630120394752,

%U 407240889859179425562624,288272814806050917816729600

%N Scaled coefficients of (arctanh x)^5.

%F e.g.f. (arctanh x)^5 or (1-x^2)^-1 * (arctanh x)^4

%F a(n) is coefficient of x^(2*n+5) in (arctanh x)^5, multiplied by (2*n+5)!/5!

%e (arctanh x)^5 = x^5 + 5/3*x^7 + 19/9*x^9 + 457/189*x^11 + ...

%K nonn

%O 0,2

%A Joe Keane (jgk(AT)jgk.org)

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Last modified February 7 01:12 EST 2016. Contains 268050 sequences.