Sum of first n terms divides the concatenation of the first n terms.

Terms

a(0) =1a(1) =0a(2) =2a(3) =6a(4) =8a(5) =10a(6) =162a(7) =420a(8) =174a(9) =486a(10) =974a(11) =4486a(12) =1794a(13) =20834a(14) =26986a(15) =16098a(16) =19220a(17) =19738a(18) =58362a(19) =60918a(20) =48564a(21) =87476a(22) =38602a(23) =579030a(24) =231612a(25) =587034a(26) =1375080a(27) =6356154a(28) =951846a(29) =1038240