Pentagonal numbers (A000326) whose digit reversal is the product of 2 palindromes greater than 1.

Terms

a(0) =12a(1) =22a(2) =51a(3) =210a(4) =330a(5) =425a(6) =1162a(7) =2882a(8) =3876a(9) =4510a(10) =6902a(11) =8400a(12) =9801a(13) =14652a(14) =15251a(15) =22632a(16) =27270a(17) =29330a(18) =32340a(19) =52360a(20) =54055a(21) =55777a(22) =58707a(23) =66676a(24) =68587a(25) =104412a(26) =197472a(27) =217551a(28) =279720a(29) =298151