Multiples of 10: a(n) = 10*n.

Terms

a(0) =0a(1) =10a(2) =20a(3) =30a(4) =40a(5) =50a(6) =60a(7) =70a(8) =80a(9) =90a(10) =100a(11) =110a(12) =120a(13) =130a(14) =140a(15) =150a(16) =160a(17) =170a(18) =180a(19) =190a(20) =200a(21) =210a(22) =220a(23) =230a(24) =240a(25) =250a(26) =260a(27) =270a(28) =280a(29) =290