a(1) = 2; then defined by property that a(n) = smallest number >= a(n-1) such that successive runs have lengths 1,1,2,2,3,3,4,4.

A027434

a(1) = 2; then defined by property that a(n) = smallest number >= a(n-1) such that successive runs have lengths 1,1,2,2,3,3,4,4.

Terms

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

External references