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A244309 as a simple table

na(n)
00
10
20
34
418
5100
6448
72028
88820
938148
10163350
11697048
122965248
1312595048
1453440504
15226608900
16960530634
174070452764
1817246835648
1973069580980
20309555981900
211311374255620
225555264316910
2323532984885744
2499688652356608
25422291386890000

[0,0,0,4,18,100,448,2028,8820,38148,163350,697048,
 2965248,12595048,53440504,226608900,960530634,
 4070452764,17246835648,73069580980,309555981900,
 1311374255620,5555264316910,23532984885744,
 99688652356608,422291386890000]