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A187618 as a simple table

na(n)
01
11
22
31
45
536
61
713
8281
96728
101
1134
122245
13167089
1412988816
151
1689
1718061
184213133
191031151241
20258584046368
211
22233
23145601
24106912793
2582741005829
2665743732590821
2753060477521960000
281
29610
301174500
312720246633
326675498237130
3316848161392724969
3443242613716069407953
35112202208776036178000000

[1,1,2,1,5,36,1,13,281,6728,1,34,2245,167089,
 12988816,1,89,18061,4213133,1031151241,
 258584046368,1,233,145601,106912793,82741005829,
 65743732590821,53060477521960000,1,610,1174500,
 2720246633,6675498237130,16848161392724969,
 43242613716069407953,112202208776036178000000]