login

A371408 as a simple table

na(n)
00
10
20
30
41
54
620
780
8315
91176
104284
1115240
1253295
13183700
14625768
152110472
167057505
1723427600
1877271120
19253426752
20827009523
212686728060
228693388060
2328026897360
2490058925649
25288516259416
26921755412900
272937377079000
289338728806225
2929626186593276

[0,0,0,0,1,4,20,80,315,1176,4284,15240,53295,
 183700,625768,2110472,7057505,23427600,77271120,
 253426752,827009523,2686728060,8693388060,
 28026897360,90058925649,288516259416,921755412900,
 2937377079000,9338728806225,29626186593276]