a(n) = residue mod 5 of n-th term of A024702.

Terms

a(0) =1a(1) =2a(2) =0a(3) =2a(4) =2a(5) =0a(6) =2a(7) =0a(8) =0a(9) =2a(10) =0a(11) =2a(12) =2a(13) =2a(14) =0a(15) =0a(16) =2a(17) =0a(18) =2a(19) =0a(20) =2a(21) =0a(22) =2a(23) =0a(24) =2a(25) =2a(26) =0a(27) =2a(28) =2a(29) =0