Row sums of number triangle A110541.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =9a(5) =19a(6) =48a(7) =140a(8) =458a(9) =1635a(10) =6272a(11) =25580a(12) =110130a(13) =497832a(14) =2352807a(15) =11584809a(16) =59251847a(17) =313995514a(18) =1720289573a(19) =9725340014a(20) =56636885799a(21) =339259270680