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A191742 as a simple table

na(n)
12
26
334
4354
56640
6226090
713978062
81567580958
9318961138670
10117759554854782
1178883071103925368
1295874600035087067128
13211425486715722284229326
14845949075122781758953188444
156141355289964517541296446302562

[2,6,34,354,6640,226090,13978062,1567580958,
 318961138670,117759554854782,78883071103925368,
 95874600035087067128,211425486715722284229326,
 845949075122781758953188444,
 6141355289964517541296446302562]