Antidiagonal sums of triangle A121775.

Terms

a(0) =1a(1) =1a(2) =3a(3) =6a(4) =10a(5) =16a(6) =23a(7) =36a(8) =52a(9) =76a(10) =118a(11) =181a(12) =271a(13) =427a(14) =675a(15) =1057a(16) =1686a(17) =2705a(18) =4318a(19) =6923a(20) =11142a(21) =17966a(22) =28999a(23) =46793a(24) =75522a(25) =122018a(26) =197254a(27) =318907a(28) =515616a(29) =833796