Differences of A038005.

Terms

a(0) =12a(1) =36a(2) =24a(3) =36a(4) =12a(5) =20a(6) =4a(7) =48a(8) =36a(9) =20a(10) =4a(11) =60a(12) =6a(13) =22a(14) =80a(15) =32a(16) =10a(17) =18a(18) =52a(19) =8a(20) =12a(21) =36a(22) =24a(23) =48a(24) =12a(25) =60a(26) =24a(27) =24a(28) =12a(29) =48