Triangle in which the n-th row contains n palindromes beginning with n.

Terms

a(0) =1a(1) =2a(2) =22a(3) =3a(4) =33a(5) =303a(6) =4a(7) =44a(8) =404a(9) =414a(10) =5a(11) =55a(12) =505a(13) =515a(14) =525a(15) =6a(16) =66a(17) =606a(18) =616a(19) =626a(20) =636a(21) =7a(22) =77a(23) =707a(24) =717a(25) =727a(26) =737a(27) =747a(28) =8a(29) =88