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

 Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 60th year, we have over 367,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”). Other ways to Give
 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A144887 Row sums of triangle A144886 (S1hat(4)). 2
 1, 5, 25, 161, 1081, 8745, 75305, 741961, 7904201, 93174025, 1185282185, 16364262281, 242055376521, 3834244039305, 64590031280265, 1154392672267401, 21796700933039241, 433694961594395785, 9066521908425387145, 198692729793556061321 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Table of n, a(n) for n=1..20. FORMULA a(n) = Sum_{m=1..n} A144886(n,m), n>=1. CROSSREFS Cf. A144886. Sequence in context: A356599 A137963 A366435 * A181344 A361916 A356596 Adjacent sequences: A144884 A144885 A144886 * A144888 A144889 A144890 KEYWORD nonn,easy AUTHOR Wolfdieter Lang, Oct 09 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified December 8 16:32 EST 2023. Contains 367680 sequences. (Running on oeis4.)