login

A211966 as a simple table

na(n)
12
26
320
474
5286
61124
74460
817768
970930
10283440
111133200
124531686
1318124522
1472493652
15289965744
161159845258
174639345612
1818557311624
1974229104872
20296916136278
211187663978718
224750654782144
2319002616863186
2476010462922018

[2,6,20,74,286,1124,4460,17768,70930,283440,
 1133200,4531686,18124522,72493652,289965744,
 1159845258,4639345612,18557311624,74229104872,
 296916136278,1187663978718,4750654782144,
 19002616863186,76010462922018]