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A049611 as a simple table

na(n)
00
11
24
313
438
5104
6272
7688
81696
94096
109728
1122784
1252736
13120832
14274432
15618496
161384448
173080192
186815744
1915007744
2032899072
2171827456
22156237824
23338690048
24731906048
251577058304
263388997632
277264534528
2815535702016

[0,1,4,13,38,104,272,688,1696,4096,9728,22784,
 52736,120832,274432,618496,1384448,3080192,
 6815744,15007744,32899072,71827456,156237824,
 338690048,731906048,1577058304,3388997632,
 7264534528,15535702016]