A028309 - OEIS

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A028309 as a simple table

n	a(n)
0	1
1	1
2	2
3	3
4	5
5	6
6	9
7	11
8	15
9	18
10	23
11	27
12	33
13	38
14	45
15	51
16	59
17	66
18	75
19	83
20	93
21	102
22	113
23	123
24	135
25	146
26	159
27	171
28	185
29	198
30	213
31	227
32	243
33	258
34	275
35	291
36	309
37	326
38	345
39	363
40	383
41	402
42	423
43	443
44	465
45	486
46	509
47	531
48	555

[1,1,2,3,5,6,9,11,15,18,23,27,33,38,45,51,59,66, 75,83,93,102,113,123,135,146,159,171,185,198,213, 227,243,258,275,291,309,326,345,363,383,402,423, 443,465,486,509,531,555]

n	a(n)
0	1
1	1
2	2
3	3
4	5
5	6
6	9
7	11
8	15
9	18
10	23
11	27
12	33
13	38
14	45
15	51
16	59
17	66
18	75
19	83
20	93
21	102
22	113
23	123
24	135
25	146
26	159
27	171
28	185
29	198
30	213
31	227
32	243
33	258
34	275
35	291
36	309
37	326
38	345
39	363
40	383
41	402
42	423
43	443
44	465
45	486
46	509
47	531
48	555

n	a(n)
0	1
1	1
2	2
3	3
4	5
5	6
6	9
7	11
8	15
9	18
10	23
11	27
12	33
13	38
14	45
15	51
16	59
17	66
18	75
19	83
20	93
21	102
22	113
23	123
24	135
25	146
26	159
27	171
28	185
29	198
30	213
31	227
32	243
33	258
34	275
35	291
36	309
37	326
38	345
39	363
40	383
41	402
42	423
43	443
44	465
45	486
46	509
47	531
48	555

n	a(n)
0	1
1	1
2	2
3	3
4	5
5	6
6	9
7	11
8	15
9	18
10	23
11	27
12	33
13	38
14	45
15	51
16	59
17	66
18	75
19	83
20	93
21	102
22	113
23	123
24	135
25	146
26	159
27	171
28	185
29	198
30	213
31	227
32	243
33	258
34	275
35	291
36	309
37	326
38	345
39	363
40	383
41	402
42	423
43	443
44	465
45	486
46	509
47	531
48	555