First differences of A293160.

Terms

a(0) =0a(1) =1a(2) =1a(3) =2a(4) =2a(5) =6a(6) =7a(7) =11a(8) =17a(9) =30a(10) =40a(11) =73a(12) =109a(13) =165a(14) =269a(15) =441a(16) =675a(17) =1076a(18) =1671a(19) =2699a(20) =4256a(21) =6726a(22) =10585a(23) =16969a(24) =26524a(25) =42386a(26) =66979