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A246961 as a simple table

na(n)
00
14
2146
33034
452916
5857824
613426406
7206324374
83138660776
947471139964
10715573119866
1110765074628114
12161759034582236
132428929817996504
1436456836245518926
15547058495778290254
168207730761823753296
17123132640134289171444
181847139704277091999586
1927708446454015214334794
20415638854666404701309956

[0,4,146,3034,52916,857824,13426406,206324374,
 3138660776,47471139964,715573119866,
 10765074628114,161759034582236,2428929817996504,
 36456836245518926,547058495778290254,
 8207730761823753296,123132640134289171444,
 1847139704277091999586,27708446454015214334794,
 415638854666404701309956]