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Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A197919 as a simple table

na(n)
11
24
312
494
51604
647877
72261778
8187733882
930981880951
109213362077719

[1,4,12,94,1604,47877,2261778,187733882,
 30981880951,9213362077719]