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A367415 as a simple table

na(n)
01
11
22
35
415
552
6198
7793
83255
913529
1056696
11239340
121017900
134361840
1418828606
1581833505
16357865215
171573549667
186952392450
1930848928525
20137403484655
21614104910096
222753200345000
2312378494389660
2455799811151140
25252141767612812
261141894552992368

[1,1,2,5,15,52,198,793,3255,13529,56696,239340,
 1017900,4361840,18828606,81833505,357865215,
 1573549667,6952392450,30848928525,137403484655,
 614104910096,2753200345000,12378494389660,
 55799811151140,252141767612812,1141894552992368]