This site is supported by donations to The OEIS Foundation.

 Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing. Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A039929 Second column of Fibonacci Jabotinsky-triangle A039692. 0
 0, 1, 9, 59, 450, 4114, 43512, 528492, 7235568, 110499696, 1862118720, 34342356960, 688092312960, 14886351037440, 345878769358080, 8590707803462400, 227153424885811200, 6371121297516595200 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS E.g.f.: (log(1-x-x^2))^2/2. LINKS FORMULA a(n) = A039692(n, 2); a(n) = (n-1)!*sum(L(j)*L(n-j)/(n-j), j=1..n-1), n >= 2, L(n)= A000032(n) (Lucas). MATHEMATICA With[{nn=20}, CoefficientList[Series[Log[1-x-x^2]^2/2, {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Jun 11 2017 *) CROSSREFS Cf. A039692, A039647, A000032, A005442. Sequence in context: A231228 A198847 A059356 * A099333 A098327 A118674 Adjacent sequences:  A039926 A039927 A039928 * A039930 A039931 A039932 KEYWORD easy,nonn AUTHOR 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 December 16 04:05 EST 2019. Contains 330013 sequences. (Running on oeis4.)