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A280652 as a triangular array

0
00
048
0121620
018323636
02448566072
03062768488104
03676104112120132140
04286130136152160184180
048100144180184192216232240
054110166210228232

A280652 as a square array

00000000000
041218243036424854
8163248627686100110
20365676104130144166
366084112136180210
7288120152184228
104132160192232
140184216
180232
240
00000000000
041218243036424854
8163248627686100110
20365676104130144166
366084112136180210
7288120152184228
104132160192232
140184216
180232
240