Odd split numbers: have a nontrivial factorization n=ab with a and b coprime, so that L(a) + L(b) <= L(n), where L(x) = A029837(x) = ceiling(log_2(x)).

A036382

Odd split numbers: have a nontrivial factorization n=ab with a and b coprime, so that L(a) + L(b) <= L(n), where L(x) = A029837(x) = ceiling(log_2(x)).

Terms

    a(0) =21a(1) =33a(2) =35a(3) =39a(4) =65a(5) =69a(6) =75a(7) =77a(8) =87a(9) =91a(10) =93a(11) =105a(12) =129a(13) =133a(14) =135a(15) =141a(16) =143a(17) =145a(18) =147a(19) =155a(20) =159a(21) =161a(22) =165a(23) =175a(24) =177a(25) =183a(26) =189a(27) =195a(28) =203a(29) =217

External references