Number of subsets of {1,2,...,n-10} without differences equal to 2, 4, 6, 8 or 10.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =1a(9) =1a(10) =1a(11) =2a(12) =4a(13) =6a(14) =9a(15) =12a(16) =16a(17) =20a(18) =25a(19) =30a(20) =36a(21) =42a(22) =49a(23) =63a(24) =81a(25) =108a(26) =144a(27) =192a(28) =256a(29) =336