a(n) = n-th nonnegative integer k satisfying sin(k) < sin(k+1).

Terms

a(0) =0a(1) =1a(2) =5a(3) =6a(4) =7a(5) =11a(6) =12a(7) =13a(8) =17a(9) =18a(10) =19a(11) =24a(12) =25a(13) =26a(14) =30a(15) =31a(16) =32a(17) =36a(18) =37a(19) =38a(20) =42a(21) =43a(22) =44a(23) =45a(24) =49a(25) =50a(26) =51a(27) =55a(28) =56a(29) =57