Least k such that the first k terms of A006928 contain n more 2's than 1's.

Terms

a(0) =11a(1) =92a(2) =377a(3) =470a(4) =6351a(5) =6968a(6) =7175a(7) =7268a(8) =7565a(9) =7970a(10) =20337a(11) =20370a(12) =21981a(13) =22008a(14) =25637a(15) =25664a(16) =25691a(17) =27968a(18) =39183a(19) =39210a(20) =42397a(21) =43128a(22) =43149a(23) =48636a(24) =48729a(25) =48756a(26) =49013a(27) =49040a(28) =49067a(29) =49094