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A267220 as a simple table

na(n)
01
15
249
3685
411807
5232771
65031415
7116222699
82822056474
971230971002
101854334597966
1149503739725470
121349449053997654
1337438177610268014
141054371288632733022
1530081609844254013942
16867990837575171240525
1725295504900322451251793

[1,5,49,685,11807,232771,5031415,116222699,
 2822056474,71230971002,1854334597966,
 49503739725470,1349449053997654,37438177610268014,
 1054371288632733022,30081609844254013942,
 867990837575171240525,25295504900322451251793]