A295227 - OEIS

A295227

a(n) = sum_{k=0,...,[n/2]} s(n-k,k)^2, s = A048994, Stirling numbers of the first kind.

%I #4 Nov 22 2017 01:39:41

%S 1,0,1,1,5,45,698,16936,594702,28564021,1799119626,143863537330,

%T 14236046853139,1707698666758297,244136528082097062,

%U 41008147506862052681,7995945735393199219626,1791074412870104676689001,456745672286592586379503743

%N a(n) = sum_{k=0,...,[n/2]} s(n-k,k)^2, s = A048994, Stirling numbers of the first kind.

%H Edyta Hetmaniok, Barbara Smoleń, Roman Wituła, <a href="http://ceur-ws.org/Vol-1853/p07.pdf">The Stirling triangles</a>, Proceedings of the Symposium for Young Scientists in Technology, Engineering and Mathematics (SYSTEM 2017), Kaunas, Lithuania, April 28, 2017, p. 35-41.

%K nonn

%O 0,5

%A _Eric M. Schmidt_, Nov 18 2017