[seqfan] Runs with a single prime

[Eric Angelini]

Hello SeqFans,
sorry to flood the list with seq playing
with the same idea -- this will be thé
last one!

R=2
, 
1,3 
, 
5,4 
, 
6,7 
, 
8,9 
, 
10,12,11,14,15,16,13,18,20,21,22,24,17,25,26,27,28,30,32,19,33,34,35,36,38,39,40,23, 
...

Again, a permutation of the Naturals,
where the size of the runs containing
a single prime re-design R itself.
(to see this, just put a vertical stroke
BEFORE each prime in R and count
the integers between two successive
strokes.)
Best,
E.