Number of matrix bundles of codimension n (Euler transform of A001156).

Terms

a(0) =1a(1) =2a(2) =4a(3) =7a(4) =11a(5) =19a(6) =30a(7) =49a(8) =76a(9) =118a(10) =180a(11) =276a(12) =411a(13) =614a(14) =908a(15) =1336a(16) =1944a(17) =2824a(18) =4067a(19) =5839a(20) =8326a(21) =11829a(22) =16719a(23) =23557a(24) =33019a(25) =46142a(26) =64226a(27) =89117a(28) =123198a(29) =169841