A337765 - cp's OEIS frontend

A337765 Number of addition triangles with apex n where all rows are weakly increasing.

n	a(n)
1	1
2	2
3	2
4	4
5	4
6	5
7	6
8	9
9	9
10	11
11	12
12	15
13	16
14	18
15	20
16	26
17	27
18	29
19	32
20	37
21	39
22	43
23	47
24	53
25	55
26	60
27	65
28	72
29	75
30	80
31	88
32	99
33	102
34	108
35	114
36	125
37	132
38	141
39	148
40	159
41	166
42	176
43	187
44	200
45	206
46	218
47	232
48	249
49	257
50	268
51	282
52	301
53	313
54	327
55	340
56	360
57	374
58	393
59	410
60	429
61	444
62	465
63	487
64	516
65	530
66	550

[1, 2, 2, 4, 4, 5, 6, 9, 9, 11, 12, 15, 16, 18, 20, 26, 27, 29, 32, 37, 39, 43, 47, 53, 55, 60, 65, 72, 75, 80, 88, 99, 102, 108, 114, 125, 132, 141, 148, 159, 166, 176, 187, 200, 206, 218, 232, 249, 257, 268, 282, 301, 313, 327, 340, 360, 374, 393, 410, 429, 444, 465, 487, 516, 530, 550]

cp's OEIS Frontend

A337765 Number of addition triangles with apex n where all rows are weakly increasing.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	4
5	4
6	5
7	6
8	9
9	9
10	11
11	12
12	15
13	16
14	18
15	20
16	26
17	27
18	29
19	32
20	37
21	39
22	43
23	47
24	53
25	55
26	60
27	65
28	72
29	75
30	80
31	88
32	99
33	102
34	108
35	114
36	125
37	132
38	141
39	148
40	159
41	166
42	176
43	187
44	200
45	206
46	218
47	232
48	249
49	257
50	268
51	282
52	301
53	313
54	327
55	340
56	360
57	374
58	393
59	410
60	429
61	444
62	465
63	487
64	516
65	530
66	550

n	a(n)
1	1
2	2
3	2
4	4
5	4
6	5
7	6
8	9
9	9
10	11
11	12
12	15
13	16
14	18
15	20
16	26
17	27
18	29
19	32
20	37
21	39
22	43
23	47
24	53
25	55
26	60
27	65
28	72
29	75
30	80
31	88
32	99
33	102
34	108
35	114
36	125
37	132
38	141
39	148
40	159
41	166
42	176
43	187
44	200
45	206
46	218
47	232
48	249
49	257
50	268
51	282
52	301
53	313
54	327
55	340
56	360
57	374
58	393
59	410
60	429
61	444
62	465
63	487
64	516
65	530
66	550

n	a(n)
1	1
2	2
3	2
4	4
5	4
6	5
7	6
8	9
9	9
10	11
11	12
12	15
13	16
14	18
15	20
16	26
17	27
18	29
19	32
20	37
21	39
22	43
23	47
24	53
25	55
26	60
27	65
28	72
29	75
30	80
31	88
32	99
33	102
34	108
35	114
36	125
37	132
38	141
39	148
40	159
41	166
42	176
43	187
44	200
45	206
46	218
47	232
48	249
49	257
50	268
51	282
52	301
53	313
54	327
55	340
56	360
57	374
58	393
59	410
60	429
61	444
62	465
63	487
64	516
65	530
66	550