Number of blocks in a Steiner system S(2, 5, A228141(n+1)).

Terms

a(0) =1a(1) =21a(2) =30a(3) =82a(4) =99a(5) =183a(6) =208a(7) =324a(8) =357a(9) =505a(10) =546a(11) =726a(12) =775a(13) =987a(14) =1044a(15) =1288a(16) =1353a(17) =1629a(18) =1702a(19) =2010a(20) =2091a(21) =2431a(22) =2520a(23) =2892a(24) =2989a(25) =3393a(26) =3498a(27) =3934a(28) =4047a(29) =4515