%I #14 Dec 26 2018 15:02:16
%S 1,1,2,5,15,52,203,877,4140,17007,64077,231180,821132,2918753,
%T 10483154,38264066,142423894,533308705,1995314365,7437442700,
%U 27604521795,102095937121,376790770192,1389739254904,5130664114644,18964932885093,70170215134155,259770146382666
%N Number of set partitions of [n] such that for each block b the smallest integer interval containing b has at most eight elements.
%H Alois P. Heinz, <a href="/A276724/b276724.txt">Table of n, a(n) for n = 0..1000</a>
%H Alois P. Heinz, <a href="/A276724/a276724.txt">G.f. for A276724</a>
%H Pierpaolo Natalini, Paolo Emilio Ricci, <a href="https://doi.org/10.3390/axioms7040071">New Bell-Sheffer Polynomial Sets</a>, Axioms 2018, 7(4), 71.
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Partition_of_a_set">Partition of a set</a>
%F G.f.: see link above.
%Y Column k=8 of A276719.
%Y Cf. A276842, A276898.
%K nonn,easy
%O 0,3
%A _Alois P. Heinz_, Sep 16 2016