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A292934 as a simple table

na(n)
00
10
22
36
448
5400
64140
749644
8681296
910515600
10180349380
113402380740
1270023004920
131561206957336
1437485640585484
15964345394431020
1626462386594676640
17771532717446066208
1823817889096309943892
19776127882633846005268

[0,0,2,6,48,400,4140,49644,681296,10515600,
 180349380,3402380740,70023004920,1561206957336,
 37485640585484,964345394431020,26462386594676640,
 771532717446066208,23817889096309943892,
 776127882633846005268]