[seqfan] Last Xmas present (with primes)

[Eric Angelini]

I was desappointed that S and T (my
last post) were not permutations of N
(the natural numbers). P does the job:

P = 4,1,6,2,3,8,9,10,11,13,12,5,14,15,16,17,18,20,21,22,7,24,25,26,27,19,28,30,32,33,101,34,35,36,38,39,103,...

Now draw a stroke immediately after
each prime. The quantity of digits 
between two strokes is given by P
itself. In building P always use... etc.

Best,
É.