OFFSET
1,3
COMMENTS
If m appears in the n-th row, then 2*m also appears in the n-th row.
This array has connections with A300653: here n appears in 1/T(n, k), there T(n, k) appears in 1/n.
LINKS
Rémy Sigrist, PARI program for A300691
FORMULA
EXAMPLE
Square array begins:
n\k| 1 2 3 4 5 6 7 8 9 10 11 12
---+------------------------------------------------
1| 1 2 3 4 5 6 7 8 9 10 11 12 --> A000027
2| 1 2 3 4 5 6 7 8 9 10 11 12 --> A000027
3| 5 9 10 11 13 17 18 19 20 21 22 23 --> A300669
4| 1 2 4 5 7 8 9 10 11 13 14 15
5| 3 6 11 12 13 19 22 23 24 25 26 27
6| 5 9 10 11 13 17 18 19 20 21 22 23
7| 9 11 13 17 18 19 22 25 26 27 29 33
8| 1 2 4 8 9 11 13 15 16 17 18 19
9| 5 7 10 13 14 19 20 23 26 27 28 29
10| 3 6 11 12 19 22 24 25 27 29 35 37
11| 11 13 19 22 23 25 26 27 29 37 38 43
12| 5 9 10 13 17 18 19 20 21 23 25 26
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
AUTHOR
Rémy Sigrist, Mar 11 2018
STATUS
approved