a(n) = Sum_{i=0..n} digsum_5(i)^4, where digsum_5(i) = A053824(i).

Terms

a(0) =0a(1) =1a(2) =17a(3) =98a(4) =354a(5) =355a(6) =371a(7) =452a(8) =708a(9) =1333a(10) =1349a(11) =1430a(12) =1686a(13) =2311a(14) =3607a(15) =3688a(16) =3944a(17) =4569a(18) =5865a(19) =8266a(20) =8522a(21) =9147a(22) =10443a(23) =12844a(24) =16940a(25) =16941a(26) =16957a(27) =17038a(28) =17294a(29) =17919