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A302108 as a simple table

na(n)
01
11
24
327
4256
53152
647680
7854802
817711872
9416372620
1010947581056
11318304921165
1210140097538560
13351219420860694
1413141237470041536
15528208859187285899
1622698715714385041920
171038485165851106374784
1850395972495225521776384
192585595617532863164095240
20139835798146777767415142912
217950987913261988583226011167

[1,1,4,27,256,3152,47680,854802,17711872,
 416372620,10947581056,318304921165,10140097538560,
 351219420860694,13141237470041536,
 528208859187285899,22698715714385041920,
 1038485165851106374784,50395972495225521776384,
 2585595617532863164095240,
 139835798146777767415142912,
 7950987913261988583226011167]