login

A025267 as a simple table

na(n)
11
2-1
31
43
54
63
74
819
960
10124
11214
12455
131266
143404
157974
1617699
1742050
18107956
19276534
20680140
211647872
224082562
2310366604
2426363583
2566318590
26166265630
27420151570
281070885100
292734066540
306964626146
3117739885228
3245334834067
33116258144838

[1,-1,1,3,4,3,4,19,60,124,214,455,1266,3404,7974,
 17699,42050,107956,276534,680140,1647872,4082562,
 10366604,26363583,66318590,166265630,420151570,
 1070885100,2734066540,6964626146,17739885228,
 45334834067,116258144838]