n-th nonnegative integer k satisfying |sin(k)| > |cos(k)| > |sin(k+1)|.

Terms

a(0) =2a(1) =5a(2) =18a(3) =21a(4) =24a(5) =27a(6) =40a(7) =43a(8) =46a(9) =49a(10) =62a(11) =65a(12) =68a(13) =71a(14) =84a(15) =87a(16) =90a(17) =93a(18) =106a(19) =109a(20) =112a(21) =115a(22) =128a(23) =131a(24) =134a(25) =137a(26) =150a(27) =153a(28) =156a(29) =159