Pentagonal numbers (A000326) which are the sum of 2 other positive pentagonal numbers.

Terms

a(0) =70a(1) =92a(2) =852a(3) =925a(4) =1247a(5) =1426a(6) =1926a(7) =2625a(8) =3577a(9) =5192a(10) =6305a(11) =6501a(12) =7107a(13) =7740a(14) =7957a(15) =8177a(16) =8626a(17) =9560a(18) =10292a(19) =12927a(20) =13207a(21) =14652a(22) =15555a(23) =16172a(24) =18095a(25) =20475a(26) =20827a(27) =21901a(28) =22265a(29) =22632