A131950 - cp's OEIS frontend

A131950 A002024 + A131821 + A007318 - 2*A000012 as infinite lower triangular matrices.

n	a(n)
0	1
1	3
2	3
3	5
4	4
5	5
6	7
7	6
8	6
9	7
10	9
11	8
12	10
13	8
14	9
15	11
16	10
17	15
18	15
19	10
20	11
21	13
22	12
23	21
24	26
25	21
26	12
27	13
28	15
29	14
30	28
31	42
32	42
33	28
34	14
35	15
36	17
37	16
38	36
39	64
40	78
41	64
42	36
43	16
44	17
45	19
46	18
47	45
48	93
49	135
50	135
51	93
52	45
53	18
54	19

[1, 3, 3, 5, 4, 5, 7, 6, 6, 7, 9, 8, 10, 8, 9, 11, 10, 15, 15, 10, 11, 13, 12, 21, 26, 21, 12, 13, 15, 14, 28, 42, 42, 28, 14, 15, 17, 16, 36, 64, 78, 64, 36, 16, 17, 19, 18, 45, 93, 135, 135, 93, 45, 18, 19]

cp's OEIS Frontend

A131950 A002024 + A131821 + A007318 - 2*A000012 as infinite lower triangular matrices.

Table of values

List of values

n	a(n)
0	1
1	3
2	3
3	5
4	4
5	5
6	7
7	6
8	6
9	7
10	9
11	8
12	10
13	8
14	9
15	11
16	10
17	15
18	15
19	10
20	11
21	13
22	12
23	21
24	26
25	21
26	12
27	13
28	15
29	14
30	28
31	42
32	42
33	28
34	14
35	15
36	17
37	16
38	36
39	64
40	78
41	64
42	36
43	16
44	17
45	19
46	18
47	45
48	93
49	135
50	135
51	93
52	45
53	18
54	19

n	a(n)
0	1
1	3
2	3
3	5
4	4
5	5
6	7
7	6
8	6
9	7
10	9
11	8
12	10
13	8
14	9
15	11
16	10
17	15
18	15
19	10
20	11
21	13
22	12
23	21
24	26
25	21
26	12
27	13
28	15
29	14
30	28
31	42
32	42
33	28
34	14
35	15
36	17
37	16
38	36
39	64
40	78
41	64
42	36
43	16
44	17
45	19
46	18
47	45
48	93
49	135
50	135
51	93
52	45
53	18
54	19

n	a(n)
0	1
1	3
2	3
3	5
4	4
5	5
6	7
7	6
8	6
9	7
10	9
11	8
12	10
13	8
14	9
15	11
16	10
17	15
18	15
19	10
20	11
21	13
22	12
23	21
24	26
25	21
26	12
27	13
28	15
29	14
30	28
31	42
32	42
33	28
34	14
35	15
36	17
37	16
38	36
39	64
40	78
41	64
42	36
43	16
44	17
45	19
46	18
47	45
48	93
49	135
50	135
51	93
52	45
53	18
54	19