OFFSET
2,3
LINKS
John R. Doyle, Paul Fili and Trevor Hyde, Dynatomic polynomials, necklace operators, and universal relations for dynamical units, arXiv:2108.09333 [math.NT], 2021.
EXAMPLE
Triangle begins:
[1]
[1, 2]
[1, 2]
[1, 2, 4]
[1, 2]
[1, 2, 3, 6]
[1, 2, 4]
[1, 2, 3, 6]
[1, 2, 4]
[1, 2, 5, 10]
PROG
(PARI) M(n) = sumdiv(n, d, moebius(d)*x^(n/d));
row(n) = my(list=List(), pol=M(n)); for (k=1, n, if (type(pol/(x^k-1)) == "t_POL", listput(list, k))); Vec(list);
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Michel Marcus, Aug 24 2021
STATUS
approved