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A172656 as a simple table

na(n)
1252
279796556
331091880269520
420033574566576932620
516426290801521822874931152
615872049782314898323485642439824
717207115363089145896738850914404036032

[252,79796556,31091880269520,20033574566576932620,
 16426290801521822874931152,
 15872049782314898323485642439824,
 17207115363089145896738850914404036032]