Diagonal sums of A110537 viewed as a number triangle.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =8a(7) =10a(8) =15a(9) =23a(10) =35a(11) =58a(12) =101a(13) =193a(14) =381a(15) =817a(16) =1820a(17) =4298a(18) =10550a(19) =27037a(20) =71715a(21) =197062a(22) =558923a(23) =1635948a(24) =4932931a(25) =15313467a(26) =48883315a(27) =160311731a(28) =539527417a(29) =1861545528