login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A228128 as a simple table

na(n)
11
20
31
40
51
61
70
81
91
101
110
121
132
141
151
160
171
183
193
201
211
220
231
243
254
263
271
281
290
301
314
327
335
343
351
361
370
381
395
408
419
426
433
441
451
460
471
485
4913
5013
5110
526
533
541
551
560
571
586
5914
6020
6117
6211
636
643
651
661
670
681
697
7020
7127
7228
7319
7412
756
763
771
781
790
801
817
8222
8338
8440
8533
8620
8712
886
893
901
911
920
931
948
9529
9649
9760
9851
9937
10021
10112
1026
1033
1041
1051
1060
1071
1089
10931
11065
11185
11279
11359
11439
11522
11612
1176
1183
1191
1201

[1,0,1,0,1,1,0,1,1,1,0,1,2,1,1,0,1,3,3,1,1,0,1,3,
 4,3,1,1,0,1,4,7,5,3,1,1,0,1,5,8,9,6,3,1,1,0,1,5,
 13,13,10,6,3,1,1,0,1,6,14,20,17,11,6,3,1,1,0,1,7,
 20,27,28,19,12,6,3,1,1,0,1,7,22,38,40,33,20,12,6,
 3,1,1,0,1,8,29,49,60,51,37,21,12,6,3,1,1,0,1,9,31,
 65,85,79,59,39,22,12,6,3,1,1]