Triangle of numbers arising in recursive computation of A002212.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =4a(5) =7a(6) =10a(7) =13a(8) =16a(9) =26a(10) =36a(11) =46a(12) =55a(13) =65a(14) =101a(15) =137a(16) =173a(17) =203a(18) =233a(19) =269a(20) =406a(21) =543a(22) =680a(23) =788a(24) =888a(25) =996a(26) =1133a(27) =1676a(28) =2219a(29) =2762