Number of partitions of an n-set without blocks of size 10.

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =15a(5) =52a(6) =203a(7) =877a(8) =4140a(9) =21147a(10) =115974a(11) =678559a(12) =4213465a(13) =27643007a(14) =190884307a(15) =1382802389a(16) =10478516523a(17) =82847813908a(18) =681895648039