A135737 - cp's OEIS frontend

A135737 Ulam type (1-additive) sequences u[1]=2, u[2]=2n+1, u[k+1] is least unique sum u[i]+u[j]>u[k], 1<=i formatted as a table and read by antidiagonals.

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

[2, 3, 2, 5, 5, 2, 7, 7, 7, 2, 8, 9, 9, 9, 2, 9, 11, 11, 11, 11, 2, 13, 12, 13, 13, 13, 13, 2, 14, 13, 15, 15, 15, 15, 15, 2, 18, 15, 16, 17, 17, 17, 17, 17, 2, 19, 19, 17, 19, 19, 19, 19, 19, 19, 2, 24, 23, 19, 20, 21, 21, 21, 21, 21, 21, 2, 25, 27, 21, 21, 23, 23, 23, 23, 23, 23, 23]

cp's OEIS Frontend

A135737 Ulam type (1-additive) sequences u[1]=2, u[2]=2n+1, u[k+1] is least unique sum u[i]+u[j]>u[k], 1<=i formatted as a table and read by antidiagonals.

Table of values

List of values

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

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

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