Self-inverse permutation of natural numbers: a(0) = 0, a(1) = 1, and for n > 1, if A117966(n) < 0, a(n) = A117967(1+a(-(A117966(n)))), otherwise a(n) = A117968(a(A117966(n)-1)).
A246211
Self-inverse permutation of natural numbers: a(0) = 0, a(1) = 1, and for n > 1, if A117966(n) < 0, a(n) = A117967(1+a(-(A117966(n)))), otherwise a(n) = A117968(a(A117966(n)-1)).
Terms
- a(0) =0a(1) =1a(2) =5a(3) =22a(4) =71a(5) =2a(6) =35a(7) =15a(8) =99a(9) =225a(10) =531a(11) =66a(12) =213a(13) =516a(14) =1899a(15) =7a(16) =73a(17) =172a(18) =307a(19) =127a(20) =1369a(21) =36a(22) =3a(23) =52a(24) =304a(25) =148a(26) =1246a(27) =5408a(28) =17461a(29) =620
External references
- oeis: A246211