login

A055504 as a simple table

na(n)
00
10
20
30
40
515
6110
7455
81400
93570
107980
1116170
1230360
1353625
1490090
15145145
16225680
17340340
18499800
19717060
201007760
211390515
221887270
232523675
243329480
254338950
265591300
277131150
289009000
2911281725
3014013090
3117274285
3221144480

[0,0,0,0,0,15,110,455,1400,3570,7980,16170,30360,
 53625,90090,145145,225680,340340,499800,717060,
 1007760,1390515,1887270,2523675,3329480,4338950,
 5591300,7131150,9009000,11281725,14013090,
 17274285,21144480]