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A048664 as a simple table

na(n)
11
24
318
476
5315
61296
75320
821800
989190
10364460
111487948
126070332
1324750570
14100868236
15410919990
161673486992
176813529348
1827734769756
19112874034844
20459295593200
211868653768443
227601716598916
2330920563717052
24125759730486432
25511445050400275
262079809585544808
278457048866652588
2834386482811155244

[1,4,18,76,315,1296,5320,21800,89190,364460,
 1487948,6070332,24750570,100868236,410919990,
 1673486992,6813529348,27734769756,112874034844,
 459295593200,1868653768443,7601716598916,
 30920563717052,125759730486432,511445050400275,
 2079809585544808,8457048866652588,
 34386482811155244]