Summation of a sequence of sequential numbers containing the first term as a substring.

Terms

a(0) =10a(1) =20a(2) =33a(3) =49a(4) =35a(5) =63a(6) =57a(7) =38a(8) =19a(9) =108a(10) =116a(11) =124a(12) =132a(13) =140a(14) =715a(15) =1650a(16) =117a(17) =1800a(18) =819a(19) =2021a(20) =1221a(21) =1422a(22) =923a(23) =2425a(24) =925a(25) =2601a(26) =279a(27) =288a(28) =297a(29) =306