login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A270670 E.g.f.: Product_{k>=1} (1 + k*sinh(x^k)). 2

%I #4 Mar 21 2016 09:05:03

%S 1,1,4,31,168,1841,18600,221845,2655408,44969041,703172880,

%T 11894018621,231354830520,4504644624793,100890401218152,

%U 2370351246834901,55456622199548640,1400307612079837985,39002429830457675808,1058964187034314179181,32049467535091477285800

%N E.g.f.: Product_{k>=1} (1 + k*sinh(x^k)).

%H Vaclav Kotesovec, <a href="/A270670/b270670.txt">Table of n, a(n) for n = 0..432</a>

%t nn = 25; Range[0, nn]! * CoefficientList[Series[Product[1+k*Sinh[x^k], {k, 1, nn}], {x, 0, nn}], x]

%Y Cf. A130220, A130263, A270294, A270669.

%K nonn

%O 0,3

%A _Vaclav Kotesovec_, Mar 21 2016

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 21 22:50 EST 2024. Contains 370239 sequences. (Running on oeis4.)