login

A191412 as a simple table

na(n)
11
21
33
49
534
6139
7643
83198
917186
1098438
11598551
123842893
1325957607
14183858842
151361853786
1610523285935
1784648613474
18707461189513
196132612218266
2055050390426042
21510994289786018
224898133459331104
2348424584171850411

[1,1,3,9,34,139,643,3198,17186,98438,598551,
 3842893,25957607,183858842,1361853786,10523285935,
 84648613474,707461189513,6132612218266,
 55050390426042,510994289786018,4898133459331104,
 48424584171850411]