A131948 - cp's OEIS frontend

A131948 Triangle T(n,k) = 2*A002024(n+1,k+1) + A007318(n,k) - 2, read by rows.

n	a(n)
0	1
1	3
2	3
3	5
4	6
5	5
6	7
7	9
8	9
9	7
10	9
11	12
12	14
13	12
14	9
15	11
16	15
17	20
18	20
19	15
20	11
21	13
22	18
23	27
24	32
25	27
26	18
27	13
28	15
29	21
30	35
31	49
32	49
33	35
34	21
35	15
36	17
37	24
38	44
39	72
40	86
41	72
42	44
43	24
44	17
45	19
46	27
47	54
48	102
49	144
50	144
51	102
52	54
53	27
54	19

[1, 3, 3, 5, 6, 5, 7, 9, 9, 7, 9, 12, 14, 12, 9, 11, 15, 20, 20, 15, 11, 13, 18, 27, 32, 27, 18, 13, 15, 21, 35, 49, 49, 35, 21, 15, 17, 24, 44, 72, 86, 72, 44, 24, 17, 19, 27, 54, 102, 144, 144, 102, 54, 27, 19]

cp's OEIS Frontend

A131948 Triangle T(n,k) = 2*A002024(n+1,k+1) + A007318(n,k) - 2, read by rows.

Table of values

List of values

n	a(n)
0	1
1	3
2	3
3	5
4	6
5	5
6	7
7	9
8	9
9	7
10	9
11	12
12	14
13	12
14	9
15	11
16	15
17	20
18	20
19	15
20	11
21	13
22	18
23	27
24	32
25	27
26	18
27	13
28	15
29	21
30	35
31	49
32	49
33	35
34	21
35	15
36	17
37	24
38	44
39	72
40	86
41	72
42	44
43	24
44	17
45	19
46	27
47	54
48	102
49	144
50	144
51	102
52	54
53	27
54	19

n	a(n)
0	1
1	3
2	3
3	5
4	6
5	5
6	7
7	9
8	9
9	7
10	9
11	12
12	14
13	12
14	9
15	11
16	15
17	20
18	20
19	15
20	11
21	13
22	18
23	27
24	32
25	27
26	18
27	13
28	15
29	21
30	35
31	49
32	49
33	35
34	21
35	15
36	17
37	24
38	44
39	72
40	86
41	72
42	44
43	24
44	17
45	19
46	27
47	54
48	102
49	144
50	144
51	102
52	54
53	27
54	19

n	a(n)
0	1
1	3
2	3
3	5
4	6
5	5
6	7
7	9
8	9
9	7
10	9
11	12
12	14
13	12
14	9
15	11
16	15
17	20
18	20
19	15
20	11
21	13
22	18
23	27
24	32
25	27
26	18
27	13
28	15
29	21
30	35
31	49
32	49
33	35
34	21
35	15
36	17
37	24
38	44
39	72
40	86
41	72
42	44
43	24
44	17
45	19
46	27
47	54
48	102
49	144
50	144
51	102
52	54
53	27
54	19