login

A027447 as a simple table

na(n)
11
27
31
485
519
64
7415
8115
937
109
1112019
123799
131489
14549
15144
1613489
174669
182059
19919
20364
21100
22726301
23268921
24128431
2564171
2630676
2712700
283600
293144919
301227199
31621139
32334699
33178669
3489125
3538025
3611025
3730300391
3812335311
396527971
403714811
412134141
421187125
43609625
44265825
4578400

[1,7,1,85,19,4,415,115,37,9,12019,3799,1489,549,
 144,13489,4669,2059,919,364,100,726301,268921,
 128431,64171,30676,12700,3600,3144919,1227199,
 621139,334699,178669,89125,38025,11025,30300391,
 12335311,6527971,3714811,2134141,1187125,609625,
 265825,78400]