OFFSET
1,2
COMMENTS
EXAMPLE
Northwest corner:
1 2 3 4 5 7 8 9 11
6 10 12 14 15 18 20 21 22
30 42 60 66 70 78 84 90 102
210 330 390 420 462 510 546 570 630
2310 2730 3570 3990 4290 4620 4830 5460 5610
MATHEMATICA
CROSSREFS
KEYWORD
AUTHOR
Clark Kimberling, Jun 26 2018
STATUS
approved