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 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #6 Nov 22 2017 01:39:31
%S 0,0,0,1,3,13,67,408,2874,23034,207185,2067928,22688218,271456443,
%T 3518003749,49097940464,734192914717,11711708730460,198519682344141,
%U 3563360442079351,67522465963443411,1346990675228935159,28217627569071978376,619338933079584448848
%N Sum of antidiagonals of triangle of 3-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.
%F a(n) = Sum_{k=0..[n/2]} A143492(n-k,k).
%K nonn
%O 3,5
%A _Eric M. Schmidt_, Nov 18 2017