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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A140228 Binomial transform of [1, 5, 10, 10, 5, 1, 1, -1, 1, -1, 1, ...]. 0
 1, 6, 21, 56, 126, 252, 463, 798, 1308, 2058, 3129, 4620, 6650, 9360, 12915, 17506, 23352, 30702, 39837, 51072, 64758, 81284, 101079, 124614, 152404, 185010, 223041, 267156, 318066, 376536, 443387 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS FORMULA A007318 * [1, 5, 10, 10, 5, 1, 1, -1, 1, -1, 1, ...] From Emeric Deutsch, Jun 03 2008: (Start) a(n) = n*(274 + 85*n + n^4)/60 for n >= 1. G.f.: (1+x^6)/(1-x)^6. (End) EXAMPLE a(4) = 56 = (1, 3, 3, 1) dot (1, 5, 10, 10) = (1 + 15 + 30 + 10). MAPLE 1, seq((1/60)*n*(274+85*n^2+n^4), n=1..30); # Emeric Deutsch, Jun 03 2008 CROSSREFS Cf. A007318. Sequence in context: A090581 A000389 A143980 * A264926 A006090 A192080 Adjacent sequences:  A140225 A140226 A140227 * A140229 A140230 A140231 KEYWORD nonn AUTHOR Gary W. Adamson, May 12 2008 EXTENSIONS More terms from Emeric Deutsch, Jun 03 2008 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 May 12 19:15 EDT 2021. Contains 343829 sequences. (Running on oeis4.)