Palindromic numbers in bases 5 and 8 written in base 10.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =6a(6) =18a(7) =36a(8) =186a(9) =438a(10) =2268a(11) =2709a(12) =11898a(13) =18076a(14) =151596a(15) =228222a(16) =563786a(17) =5359842a(18) =32285433a(19) =257161401a(20) =551366532a(21) =621319212a(22) =716064597a(23) =2459962002a(24) =5018349804a(25) =5067084204a(26) =7300948726a(27) =42360367356a(28) =139853034114a(29) =176616961826