[seqfan] Same parity jumps

[Eric Angelini]

Hello SeqFans,

The sequence J must be read, digit by digit, from left to right; 
any digit "d" of J says: "Jump to the right over "d" digit and 
you'll land on a digit with the same parity as me".

J = 1, 2, 3, 4, 6, 7, 5, 8, 20, 42, 9, 30, 22, 34, 41, 33, 44, 13, 36, ...

J was build starting with a(1)=1 and was always extended with the 
smallest unused integer not leading to a contradiction.

> more explanations here :
http://www.cetteadressecomportecinquantesignes.com/SameParityJumps.htm

Best,
É.