login
A083167
Triangle read by rows in which from the second row onwards the n-th row contains n smallest multiples of (n-1) not included earlier such that the row sum is a multiple of n. Triangle begins with 1.
5
1, 2, 4, 6, 8, 10, 3, 9, 12, 24, 16, 20, 28, 32, 44, 5, 15, 25, 30, 35, 40, 18, 36, 42, 48, 54, 60, 78, 7, 14, 21, 49, 56, 63, 70, 112, 64, 72, 80, 88, 96, 104, 120, 128, 184, 27, 45, 81, 90, 99, 108, 117, 126, 135, 162, 50, 100, 110, 130, 140, 150, 160, 170, 180, 190, 270
OFFSET
1,2
EXAMPLE
1
2 4
6 8 10
3 9 12 24
16 20 28 32 44
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Amarnath Murthy, Apr 26 2003
EXTENSIONS
Corrected and extended by David Wasserman, Oct 25 2004
STATUS
approved