OFFSET
0,5
LINKS
Michel Marcus, Table of n, a(n) for n = 0..5150 (Rows n=0..100 flattened).
Jeffrey C. Lagarias and Wijit Yangjit, The factorial function and generalizations, extended, arXiv:2310.12949 [math.NT], 2023. See Table 3 p. 30.
EXAMPLE
Triangle begins:
1;
1, 1;
1, 2, 1;
1, 3, 3, 1;
1, 16, 24, 16, 1;
1, 5, 40, 40, 5, 1;
1, 36, 90, 480, 90, 36, 1;
...
PROG
(PARI)
f(n, b) = sum(i=1, logint(n, b), n\b^i);
ff(n) = prod(b=2, n, b^f(n, b)); \\ A363838
T(n, k) = ff(n)/(ff(k)*ff(n-k));
row(n) = vector(n+1, k, T(n, k-1));
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Michel Marcus, Oct 21 2023
STATUS
approved