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A000251 as a simple table

na(n)
71
83
911
1029
1174
12167
13367
14755
151515
162931
175551
1810263
1918677
2033409
2159024
22102984
23177915
24304458
25516939
26871180
271458882
282428548
294021670
306627515
3110874462
3217770474
3328932739
3446943967
3575925797
36122433291
37196879385
38315759282
39505168033
40806290796
411284034606
422040485004
433235965074
445121801962
458091411114
4612759606939
4720085832527
4831565046053
4949523414558
5077575278933
51121329065354
52189475663960
53295465391518
54460087656595
55715436020515
561110994054004

[1,3,11,29,74,167,367,755,1515,2931,5551,10263,
 18677,33409,59024,102984,177915,304458,516939,
 871180,1458882,2428548,4021670,6627515,10874462,
 17770474,28932739,46943967,75925797,122433291,
 196879385,315759282,505168033,806290796,
 1284034606,2040485004,3235965074,5121801962,
 8091411114,12759606939,20085832527,31565046053,
 49523414558,77575278933,121329065354,189475663960,
 295465391518,460087656595,715436020515,
 1110994054004]