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A309008 as a triangular array

1
23
696
12362410
281081205015
563514803009021
12010532016150063014728
2403240806477503780117622436
49697203264038750232208232201632445

A309008 as a square array

126122856120240496
3936108351105332409720
6241204802016806432640
10503001500775038750
1590630378023220
2114711768232
282242016
36324
45
126122856120240496
3936108351105332409720
6241204802016806432640
10503001500775038750
1590630378023220
2114711768232
282242016
36324
45