login

A153512 as a simple table

na(n)
01
13
23
315
425
515
6105
7245
8245
9105
10945
112835
123969
132835
14945
1510395
1638115
1768607
1868607
1938115
2010395
21135135
22585585
231288287
241656369
251288287
26585585
27135135
282027025
2910135125
3026351325
3141409225
3241409225
3326351325
3410135125
352027025

[1,3,3,15,25,15,105,245,245,105,945,2835,3969,
 2835,945,10395,38115,68607,68607,38115,10395,
 135135,585585,1288287,1656369,1288287,585585,
 135135,2027025,10135125,26351325,41409225,
 41409225,26351325,10135125,2027025]