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

 Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS"). Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A096813 Backwards row convergent of triangle A096811, in which A096811(n,k) equals the k-th term of the convolution of the two prior rows indexed by (n-k) and (k-2). 4
 0, 1, 1, 2, 4, 8, 18, 40, 92, 210, 490, 1178, 2834, 6908, 16996, 41874, 103632, 260512, 654600, 1653944, 4199426, 10727056, 27403928, 70312316, 181295568, 468321714, 1212382254, 3147806654, 8192069326, 21373640244, 55866022580, 146245331310, 383916472318, 1009104851284, 2656963351444, 7004641163440, 18494746329858, 48903314780234, 129515618740984, 343289075820158, 911136373946940 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 COMMENTS This is the convergent of the rows of triangle A096811 when the rows are read from right to left; includes an initial zero to comply with the definition. The forwards row convergent of A096811 is A096812. LINKS Paul D. Hanna, Table of n, a(n) for n = 0..50 FORMULA a(0)=0, a(1)=1; for n>1, a(n) = Sum_{k=0..n-2} A096811(n-1, k+1)*a(k+1). PROG (PARI) {A096811(n, k)=if(n

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 November 24 04:08 EST 2020. Contains 338607 sequences. (Running on oeis4.)