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A027858号作为一个简单的表

n个a(n)
01
15
2
49
448
511
6820
71030
8404
950
1021076
1131050
1216090
133510
14274
15773136
161277136
17792540
18233100
1932724
201764
2138402064
2269261696
2348943692
2417498880
253361176
26330624
2713068
282483133696
294805827776
303752675136
311545593616
32364984704
3349672224
343622464
35109584

[1,5,3,49,48,11,820,1030,404,50,21076,31050,16090,3510,274,773136,1277136,792540,233100,32724,1764,38402064,69261696,48943692,17498880,3361176,330624,13068,2483133696,4805827776,3752675136,1545593616,364984704,49672224,3622464,109584]