OFFSET
1,2
COMMENTS
The exponents of factors in row n are given by A212182(n).
LINKS
Peter J. Marko, Table of i, a(i) for i = 1..10022 (corresponding to first n = 584 rows of irregular triangle; using data from Flammenkamp)
A. Flammenkamp, Highly composite numbers
A. Flammenkamp, List of the first 1200 highly composite numbers
A. Flammenkamp, List of the first 779,674 highly composite numbers
Peter J. Marko, Table of n, T(n, k) by rows for n = 1..10000 (using data from Flammenkamp)
S. Ramanujan, Highly composite numbers, Proceedings of the London Mathematical Society, 2, XIV, 1915, 347 - 409.
EXAMPLE
Triangle begins:
0;
2;
2;
2, 3;
2, 3;
2, 3;
2, 3;
2, 3;
2, 3, 5;
2, 3, 5;
2, 3, 5;
2, 3, 5;
2, 3, 5;
2, 3, 5;
2, 3, 5, 7;
...
1st row: A002182(1) = 1 so T(1,1) = 0;
2nd row: A002182(2) = 2 so T(2,1) = 2;
3rd row: A002182(3) = 4 = 2^2 so T(3,1) = 2;
4th row: A002182(4) = 6 = 2 * 3 so T(4,1) = 2 and T(4,2) = 3;
5th row: A002182(5) = 12 = 2^2 * 3 so T(5,1) = 2 and T(5,2) = 3;
6th row: A002182(6) = 24 = 2^3 * 3 so T(6,1) = 2 and T(6,2) = 3.
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Peter J. Marko, Aug 27 2018
STATUS
approved