A309555 - cp's OEIS frontend

A309555 Triangle read by rows: T(n,k) = 3 + k*(n-k) for n >= 0, 0 <= k <= n.

n	a(n)
0	3
1	3
2	3
3	3
4	4
5	3
6	3
7	5
8	5
9	3
10	3
11	6
12	7
13	6
14	3
15	3
16	7
17	9
18	9
19	7
20	3
21	3
22	8
23	11
24	12
25	11
26	8
27	3
28	3
29	9
30	13
31	15
32	15
33	13
34	9
35	3
36	3
37	10
38	15
39	18
40	19
41	18
42	15
43	10
44	3
45	3
46	11
47	17
48	21
49	23
50	23
51	21
52	17
53	11
54	3
55	3
56	12
57	19
58	24
59	27
60	28
61	27
62	24
63	19
64	12
65	3
66	3
67	13
68	21
69	27
70	31
71	33
72	33
73	31
74	27
75	21
76	13
77	3
78	3
79	14
80	23
81	30
82	35
83	38
84	39
85	38
86	35
87	30
88	23
89	14
90	3

[3, 3, 3, 3, 4, 3, 3, 5, 5, 3, 3, 6, 7, 6, 3, 3, 7, 9, 9, 7, 3, 3, 8, 11, 12, 11, 8, 3, 3, 9, 13, 15, 15, 13, 9, 3, 3, 10, 15, 18, 19, 18, 15, 10, 3, 3, 11, 17, 21, 23, 23, 21, 17, 11, 3, 3, 12, 19, 24, 27, 28, 27, 24, 19, 12, 3, 3, 13, 21, 27, 31, 33, 33, 31, 27, 21, 13, 3, 3, 14, 23, 30, 35, 38, 39, 38, 35, 30, 23, 14, 3]

cp's OEIS Frontend

A309555 Triangle read by rows: T(n,k) = 3 + k*(n-k) for n >= 0, 0 <= k <= n.

Table of values

List of values

n	a(n)
0	3
1	3
2	3
3	3
4	4
5	3
6	3
7	5
8	5
9	3
10	3
11	6
12	7
13	6
14	3
15	3
16	7
17	9
18	9
19	7
20	3
21	3
22	8
23	11
24	12
25	11
26	8
27	3
28	3
29	9
30	13
31	15
32	15
33	13
34	9
35	3
36	3
37	10
38	15
39	18
40	19
41	18
42	15
43	10
44	3
45	3
46	11
47	17
48	21
49	23
50	23
51	21
52	17
53	11
54	3
55	3
56	12
57	19
58	24
59	27
60	28
61	27
62	24
63	19
64	12
65	3
66	3
67	13
68	21
69	27
70	31
71	33
72	33
73	31
74	27
75	21
76	13
77	3
78	3
79	14
80	23
81	30
82	35
83	38
84	39
85	38
86	35
87	30
88	23
89	14
90	3

n	a(n)
0	3
1	3
2	3
3	3
4	4
5	3
6	3
7	5
8	5
9	3
10	3
11	6
12	7
13	6
14	3
15	3
16	7
17	9
18	9
19	7
20	3
21	3
22	8
23	11
24	12
25	11
26	8
27	3
28	3
29	9
30	13
31	15
32	15
33	13
34	9
35	3
36	3
37	10
38	15
39	18
40	19
41	18
42	15
43	10
44	3
45	3
46	11
47	17
48	21
49	23
50	23
51	21
52	17
53	11
54	3
55	3
56	12
57	19
58	24
59	27
60	28
61	27
62	24
63	19
64	12
65	3
66	3
67	13
68	21
69	27
70	31
71	33
72	33
73	31
74	27
75	21
76	13
77	3
78	3
79	14
80	23
81	30
82	35
83	38
84	39
85	38
86	35
87	30
88	23
89	14
90	3

n	a(n)
0	3
1	3
2	3
3	3
4	4
5	3
6	3
7	5
8	5
9	3
10	3
11	6
12	7
13	6
14	3
15	3
16	7
17	9
18	9
19	7
20	3
21	3
22	8
23	11
24	12
25	11
26	8
27	3
28	3
29	9
30	13
31	15
32	15
33	13
34	9
35	3
36	3
37	10
38	15
39	18
40	19
41	18
42	15
43	10
44	3
45	3
46	11
47	17
48	21
49	23
50	23
51	21
52	17
53	11
54	3
55	3
56	12
57	19
58	24
59	27
60	28
61	27
62	24
63	19
64	12
65	3
66	3
67	13
68	21
69	27
70	31
71	33
72	33
73	31
74	27
75	21
76	13
77	3
78	3
79	14
80	23
81	30
82	35
83	38
84	39
85	38
86	35
87	30
88	23
89	14
90	3