a(1) = 1; a(n+1) = a(n) +- (sum of digits of a(1) up to a(n)), with "+" when a(n) is odd, or "-" if even.

A332058

a(1) = 1; a(n+1) = a(n) +- (sum of digits of a(1) up to a(n)), with "+" when a(n) is odd, or "-" if even.

Terms

    a(0) =1a(1) =2a(2) =-1a(3) =3a(4) =10a(5) =2a(6) =-8a(7) =-26a(8) =-52a(9) =-85a(10) =-39a(11) =19a(12) =87a(13) =170a(14) =79a(15) =186a(16) =64a(17) =-68a(18) =-214a(19) =-367a(20) =-198a(21) =-385a(22) =-182a(23) =-396a(24) =-628a(25) =-876a(26) =-1145a(27) =-865a(28) =-566a(29) =-882

External references