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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A371028 a(n) = Sum_{k=1..n} (n + k - 1)! / (k!*(n - k)!) if n > 0 and a(0) = 1. Row sums of A370983. 1
 1, 1, 5, 35, 364, 5189, 94471, 2095015, 54793880, 1651345449, 56350158193, 2147652456971, 90423282500420, 4168099478767405, 208774492598428979, 11291105341823941327, 655760745772682537776, 40705101569058847374545, 2689347796601389962641085, 188430347768069305315294579 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Table of n, a(n) for n=0..19. MAPLE a := n -> local k; if n = 0 then 1 else add((n + k - 1)! / (k!*(n - k)!), k = 1..n) fi: seq(a(n), n = 0..19); CROSSREFS Cf. A370983. Sequence in context: A201367 A233860 A258902 * A125864 A210996 A204290 Adjacent sequences: A371025 A371026 A371027 * A371029 A371030 A371031 KEYWORD nonn AUTHOR Peter Luschny, Mar 09 2024 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 August 15 02:04 EDT 2024. Contains 375171 sequences. (Running on oeis4.)