OFFSET
1,2
COMMENTS
First differs from A246700 at n = 22.
LINKS
Paolo Xausa, Table of n, a(n) for n = 1..10636 (rows 1..1200 of the triangle, flattened).
EXAMPLE
Triangle begins:
1;
2, 1;
3, 2, 1;
4, 2, 1;
5, 4, 2, 1;
6, 2, 1;
7, 6, 2, 1;
8, 4, 2, 1;
9, 6, 2, 1;
10, 4, 2, 1;
...
MATHEMATICA
Array[Most[FixedPointList[EulerPhi, #]] &, 25]
CROSSREFS
KEYWORD
nonn,tabf,easy
AUTHOR
Paolo Xausa, Aug 17 2024
STATUS
approved