The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A195267 a(n) = 2*n^(2*n)*(1+ sum((1+k^(n+2)/n+k/n)/(n^k*k!), k=1..infinity)) / exp(1/n). 0
 14, 89, 3104, 265832, 42711550, 11454711984, 4840928618302, 3108267243405312, 2924919606477510504, 3870562086323220000000, 6908112063470228210507358, 16038451894952529045493383168, 47076979725683125083464370176990, 170928617514191160703263296201650176 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE n=1: 2*(1+ sum((1+k^3+k)/k!, k=1..infinity))/exp(1) = 14. CROSSREFS Cf. A001113, A092516, A092514, A092041. Sequence in context: A248060 A186257 A241305 * A077538 A114242 A054487 Adjacent sequences:  A195264 A195265 A195266 * A195268 A195269 A195270 KEYWORD nonn AUTHOR Alexander R. Povolotsky, Sep 14 2011 STATUS approved

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

Last modified January 23 10:50 EST 2020. Contains 331171 sequences. (Running on oeis4.)