[seqfan] Yellow commas

[Eric Angelini]

Hello SeqFans,
color in yellow the commas following
an odd term:
1,2,3,4,6,5,8,10,7,12,14,11,16,18,9,20,22,24,13,26,28,30,32,15,34,36,101,...
The quantity of digits between yellow
commas is given by the sequence itself.
This is a permutation of the Naturals
and the lexicographically first such seq.
The equivalent seq for even numbers
is left as an exercize for the young readers ;-)
Best,
É.
Envoyé d'un iPhone