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A144400 as a triangular array

1
2-1
3-31
4-640
5-10100-3
6-15200-1810
7-21350-6370-24
8-28560-168280-19249
9-36840-378840-864441-89
10-451200-7562100-28802205-890145
11-551650

A144400 as a square array

1234567891011
-1-3-6-10-15-21-28-36-45-55
141020355684120165
00000000
-3-18-63-168-378-756
10702808402100
-24-192-864-2880
494412205
-89-890
145
1234567891011
-1-3-6-10-15-21-28-36-45-55
141020355684120165
00000000
-3-18-63-168-378-756
10702808402100
-24-192-864-2880
494412205
-89-890
145