A335138 - cp's OEIS frontend

A335138 a(n) = 1 + Sum_{k=1..2*n} sign((sign(n+Sum_{j=2..k}-|A309229(n,j)|)+1)).

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

[3, 5, 5, 5, 6, 7, 9, 10, 7, 11, 8, 13, 8, 15, 12, 11, 10, 11, 11, 13, 13, 14, 13, 14, 13, 15, 14, 15, 13, 19, 17, 17, 17, 19, 16, 19, 15, 14, 17, 17, 15, 22, 17, 23, 20, 19, 17, 19, 17, 19, 19, 21, 19, 21, 19, 21, 21, 21, 21, 23, 22, 22, 22, 19, 21, 23, 23, 23]

cp's OEIS Frontend

A335138 a(n) = 1 + Sum_{k=1..2*n} sign((sign(n+Sum_{j=2..k}-|A309229(n,j)|)+1)).

Table of values

List of values

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

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

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