OFFSET
1,5
LINKS
Peter Kagey, Table of n, a(n) for n = 1..10011 (first 141 rows, flattened)
EXAMPLE
Multiplication table begins:
* | 0 1 3 7 12 20 30 44 65
-----+-------------------------------------
0 | 0
1 | 0 1
3 | 0 3 9
7 | 0 7 21 49
12 | 0 12 36 84 144
20 | 0 20 60 140 240 400
30 | 0 30 90 210 360 600 900
44 | 0 44 132 308 528 880 1320 1936
65 | 0 65 195 455 780 1300 1950 2860 4225
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Peter Kagey, Oct 07 2020
STATUS
approved