A324939 - OEIS

A324939

Triangle T(n,k) read by rows in which n-th row lists in increasing order all compositions [c_1, c_2, ..., c_q] of n encoded as Product_{i=1..q} prime(i)^(c_i); n>=0, 1<=k<=A011782(n).

1, 2, 4, 6, 8, 12, 18, 30, 16, 24, 36, 54, 60, 90, 150, 210, 32, 48, 72, 108, 120, 162, 180, 270, 300, 420, 450, 630, 750, 1050, 1470, 2310, 64, 96, 144, 216, 240, 324, 360, 486, 540, 600, 810, 840, 900, 1260, 1350, 1500, 1890, 2100, 2250, 2940, 3150, 3750, 4410, 4620, 5250, 6930, 7350, 10290, 11550, 16170, 25410, 30030

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

COMMENTS

All terms sorted give A055932.

All terms first sorted by number of factors give A057335.

LINKS

Alois P. Heinz, Rows n = 0..16, flattened

Wikipedia, Gödel's encoding

EXAMPLE

Triangle T(n,k) begins:

4, 6;