login

A056461 as a simple table

na(n)
15
20
320
420
5120
6100
7620
8600
93100
103000
1115620
1215480
1378120
1477500
15390480
16390000
171953120
181949900
199765620
209762480
2148827480
2248812500
23244140620
24244124400
251220703000
261220625000
276103512500
286103437480
2930517578120
3030517184400
31152587890620
32152587500000

[5,0,20,20,120,100,620,600,3100,3000,15620,15480,
 78120,77500,390480,390000,1953120,1949900,9765620,
 9762480,48827480,48812500,244140620,244124400,
 1220703000,1220625000,6103512500,6103437480,
 30517578120,30517184400,152587890620,152587500000]