Second member of a pair of numbers occurring in the definition of 1-happy couples.

Terms

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