Sequence formed from rows of triangle A046934.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =4a(5) =6a(6) =8a(7) =11a(8) =15a(9) =21a(10) =27a(11) =35a(12) =46a(13) =61a(14) =82a(15) =103a(16) =130a(17) =165a(18) =211a(19) =272a(20) =354a(21) =436a(22) =539a(23) =669a(24) =834a(25) =1045a(26) =1317a(27) =1671a(28) =2025a(29) =2461