Limit of reversed rows of triangle A126347, in which row sums equal Bell numbers (A000110).

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =7a(5) =12a(6) =20a(7) =33a(8) =53a(9) =84a(10) =131a(11) =202a(12) =308a(13) =465a(14) =695a(15) =1030a(16) =1514a(17) =2209a(18) =3201a(19) =4609a(20) =6596a(21) =9386a(22) =13284a(23) =18705a(24) =26211a(25) =36561a(26) =50776a(27) =70226a(28) =96742a(29) =132765