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A203536 as a simple table

na(n)
10
24
34
416
564
6196
7676
82304
97744
1026244
1188804
12300304
131016064
143437316
1511628100
1639337984
17133079296
18450203524
191523028676
205152368400
2117430336576
2258966408900
23199481929956
24674842534144
252282975946304
267723252297476

[0,4,4,16,64,196,676,2304,7744,26244,88804,300304,
 1016064,3437316,11628100,39337984,133079296,
 450203524,1523028676,5152368400,17430336576,
 58966408900,199481929956,674842534144,
 2282975946304,7723252297476]