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A123392 as a simple table

na(n)
-30
-20
-10
01
11
23
37
416
537
686
7199
8461
91068
102474
115731
1213276
1330754
1471242
15165033
16382301
17885605
182051515
194752360
2011008901
2125502256
2259076293
23136850967
24317016966
25734373742
261701185901
273940818284
289128954536
2921147336648

[0,0,0,1,1,3,7,16,37,86,199,461,1068,2474,5731,
 13276,30754,71242,165033,382301,885605,2051515,
 4752360,11008901,25502256,59076293,136850967,
 317016966,734373742,1701185901,3940818284,
 9128954536,21147336648]