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!)
 A321961 Sums of antidiagonals of A321964. 2
 1, 1, 2, 6, 29, 205, 1900, 21592, 289325, 4456773, 77512394, 1501537750, 32053808641, 747561173689, 18911411905052, 515798244940224, 15088848988966409, 471291927943037785, 15655172277281565058, 551102758946418279862, 20495154400760992784213, 802951447375696586076213 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Vaclav Kotesovec, Table of n, a(n) for n = 0..200 FORMULA a(n) ~ 2^(n - 1/2) * n^(n-1) / exp(n-1). - Vaclav Kotesovec, Jan 06 2019 PROG (Sage) def A321961List(l):     def row(n, dim):         m = 1         for k in range(dim-1, -1, -1):             m = 1 - (n+k)*x/m         return SR(1/m).series(x, dim).list()     return [sum(row(n-k, n+1)[k] for k in (0..n)) for n in (0..l-1)] A321961List(16) CROSSREFS Cf. A321964. Sequence in context: A296792 A241462 A187006 * A088957 A030538 A326900 Adjacent sequences:  A321958 A321959 A321960 * A321962 A321963 A321964 KEYWORD nonn AUTHOR Peter Luschny, Dec 27 2018 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 September 20 18:29 EDT 2021. Contains 347588 sequences. (Running on oeis4.)