A080570 - cp's OEIS frontend

A080570 Number of 1's in partition of n-th Ulam number into sum of two distinct Ulam numbers.

n	a(n)
1	1
2	0
3	1
4	2
5	2
6	2
7	3
8	3
9	4
10	4
11	6
12	6
13	8
14	8
15	11
16	12
17	13
18	15
19	14
20	17
21	18
22	19
23	20
24	21
25	23
26	23
27	24
28	26
29	28
30	32
31	31
32	32
33	35
34	36
35	37
36	43
37	43
38	44
39	44
40	45
41	47
42	50
43	51
44	53
45	53
46	56
47	56
48	57
49	57
50	61
51	62
52	62
53	65
54	68
55	73
56	76
57	77
58	78
59	83
60	83
61	84
62	84
63	87
64	88
65	90
66	92
67	94
68	94
69	97
70	98
71	98
72	101
73	101

[1, 0, 1, 2, 2, 2, 3, 3, 4, 4, 6, 6, 8, 8, 11, 12, 13, 15, 14, 17, 18, 19, 20, 21, 23, 23, 24, 26, 28, 32, 31, 32, 35, 36, 37, 43, 43, 44, 44, 45, 47, 50, 51, 53, 53, 56, 56, 57, 57, 61, 62, 62, 65, 68, 73, 76, 77, 78, 83, 83, 84, 84, 87, 88, 90, 92, 94, 94, 97, 98, 98, 101, 101]

cp's OEIS Frontend

A080570 Number of 1's in partition of n-th Ulam number into sum of two distinct Ulam numbers.

Table of values

List of values

n	a(n)
1	1
2	0
3	1
4	2
5	2
6	2
7	3
8	3
9	4
10	4
11	6
12	6
13	8
14	8
15	11
16	12
17	13
18	15
19	14
20	17
21	18
22	19
23	20
24	21
25	23
26	23
27	24
28	26
29	28
30	32
31	31
32	32
33	35
34	36
35	37
36	43
37	43
38	44
39	44
40	45
41	47
42	50
43	51
44	53
45	53
46	56
47	56
48	57
49	57
50	61
51	62
52	62
53	65
54	68
55	73
56	76
57	77
58	78
59	83
60	83
61	84
62	84
63	87
64	88
65	90
66	92
67	94
68	94
69	97
70	98
71	98
72	101
73	101

n	a(n)
1	1
2	0
3	1
4	2
5	2
6	2
7	3
8	3
9	4
10	4
11	6
12	6
13	8
14	8
15	11
16	12
17	13
18	15
19	14
20	17
21	18
22	19
23	20
24	21
25	23
26	23
27	24
28	26
29	28
30	32
31	31
32	32
33	35
34	36
35	37
36	43
37	43
38	44
39	44
40	45
41	47
42	50
43	51
44	53
45	53
46	56
47	56
48	57
49	57
50	61
51	62
52	62
53	65
54	68
55	73
56	76
57	77
58	78
59	83
60	83
61	84
62	84
63	87
64	88
65	90
66	92
67	94
68	94
69	97
70	98
71	98
72	101
73	101

n	a(n)
1	1
2	0
3	1
4	2
5	2
6	2
7	3
8	3
9	4
10	4
11	6
12	6
13	8
14	8
15	11
16	12
17	13
18	15
19	14
20	17
21	18
22	19
23	20
24	21
25	23
26	23
27	24
28	26
29	28
30	32
31	31
32	32
33	35
34	36
35	37
36	43
37	43
38	44
39	44
40	45
41	47
42	50
43	51
44	53
45	53
46	56
47	56
48	57
49	57
50	61
51	62
52	62
53	65
54	68
55	73
56	76
57	77
58	78
59	83
60	83
61	84
62	84
63	87
64	88
65	90
66	92
67	94
68	94
69	97
70	98
71	98
72	101
73	101