A338031 - cp's OEIS frontend

A338031 Triangular array read by rows: T(n,k) = A337656(n) + A337656(k) for 1 <= k <= n.

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	6
7	7
8	8
9	10
10	14
11	12
12	13
13	15
14	19
15	24
16	20
17	21
18	23
19	27
20	32
21	40
22	30
23	31
24	33
25	37
26	42
27	50
28	60
29	44
30	45
31	47
32	51
33	56
34	64
35	74
36	88
37	65
38	66
39	68
40	72
41	77
42	85
43	95
44	109
45	130
46	91
47	92
48	94
49	98
50	103
51	111
52	121
53	135
54	156
55	182
56	107
57	108
58	110
59	114
60	119
61	127
62	137
63	151
64	172
65	198
66	214

[0, 1, 2, 3, 4, 6, 7, 8, 10, 14, 12, 13, 15, 19, 24, 20, 21, 23, 27, 32, 40, 30, 31, 33, 37, 42, 50, 60, 44, 45, 47, 51, 56, 64, 74, 88, 65, 66, 68, 72, 77, 85, 95, 109, 130, 91, 92, 94, 98, 103, 111, 121, 135, 156, 182, 107, 108, 110, 114, 119, 127, 137, 151, 172, 198, 214]

cp's OEIS Frontend

A338031 Triangular array read by rows: T(n,k) = A337656(n) + A337656(k) for 1 <= k <= n.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	6
7	7
8	8
9	10
10	14
11	12
12	13
13	15
14	19
15	24
16	20
17	21
18	23
19	27
20	32
21	40
22	30
23	31
24	33
25	37
26	42
27	50
28	60
29	44
30	45
31	47
32	51
33	56
34	64
35	74
36	88
37	65
38	66
39	68
40	72
41	77
42	85
43	95
44	109
45	130
46	91
47	92
48	94
49	98
50	103
51	111
52	121
53	135
54	156
55	182
56	107
57	108
58	110
59	114
60	119
61	127
62	137
63	151
64	172
65	198
66	214

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	6
7	7
8	8
9	10
10	14
11	12
12	13
13	15
14	19
15	24
16	20
17	21
18	23
19	27
20	32
21	40
22	30
23	31
24	33
25	37
26	42
27	50
28	60
29	44
30	45
31	47
32	51
33	56
34	64
35	74
36	88
37	65
38	66
39	68
40	72
41	77
42	85
43	95
44	109
45	130
46	91
47	92
48	94
49	98
50	103
51	111
52	121
53	135
54	156
55	182
56	107
57	108
58	110
59	114
60	119
61	127
62	137
63	151
64	172
65	198
66	214

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	6
7	7
8	8
9	10
10	14
11	12
12	13
13	15
14	19
15	24
16	20
17	21
18	23
19	27
20	32
21	40
22	30
23	31
24	33
25	37
26	42
27	50
28	60
29	44
30	45
31	47
32	51
33	56
34	64
35	74
36	88
37	65
38	66
39	68
40	72
41	77
42	85
43	95
44	109
45	130
46	91
47	92
48	94
49	98
50	103
51	111
52	121
53	135
54	156
55	182
56	107
57	108
58	110
59	114
60	119
61	127
62	137
63	151
64	172
65	198
66	214