A245541 - cp's OEIS frontend

A245541 Write n>=1 as either n=2^k-2^r with 0 <= r <= k-1, in which case a(2^k-2^r)=(k-r)(k-r+1)/2, or as n=2^k-2^r+j with 2 <= r <= k-1, 1 <= j < 2^r-1, in which case a(2^k-2^r+j)=((k-r)(k-r+1)/2)*a(j).

n	a(n)
1	1
2	1
3	3
4	1
5	1
6	3
7	6
8	1
9	1
10	1
11	3
12	3
13	3
14	6
15	10
16	1
17	1
18	1
19	3
20	1
21	1
22	3
23	6
24	3
25	3
26	3
27	9
28	6
29	6
30	10
31	15
32	1
33	1
34	1
35	3
36	1
37	1
38	3
39	6
40	1
41	1
42	1
43	3
44	3
45	3
46	6
47	10
48	3
49	3
50	3
51	9
52	3
53	3
54	9
55	18
56	6
57	6
58	6
59	18
60	10
61	10
62	15
63	21
64	1
65	1
66	1
67	3
68	1
69	1
70	3
71	6
72	1
73	1
74	1
75	3
76	3
77	3
78	6
79	10
80	1
81	1
82	1
83	3
84	1
85	1
86	3
87	6
88	3
89	3
90	3
91	9
92	6
93	6
94	10
95	15

[1, 1, 3, 1, 1, 3, 6, 1, 1, 1, 3, 3, 3, 6, 10, 1, 1, 1, 3, 1, 1, 3, 6, 3, 3, 3, 9, 6, 6, 10, 15, 1, 1, 1, 3, 1, 1, 3, 6, 1, 1, 1, 3, 3, 3, 6, 10, 3, 3, 3, 9, 3, 3, 9, 18, 6, 6, 6, 18, 10, 10, 15, 21, 1, 1, 1, 3, 1, 1, 3, 6, 1, 1, 1, 3, 3, 3, 6, 10, 1, 1, 1, 3, 1, 1, 3, 6, 3, 3, 3, 9, 6, 6, 10, 15]

cp's OEIS Frontend

A245541 Write n>=1 as either n=2^k-2^r with 0 <= r <= k-1, in which case a(2^k-2^r)=(k-r)(k-r+1)/2, or as n=2^k-2^r+j with 2 <= r <= k-1, 1 <= j < 2^r-1, in which case a(2^k-2^r+j)=((k-r)(k-r+1)/2)*a(j).

Table of values

List of values

n	a(n)
1	1
2	1
3	3
4	1
5	1
6	3
7	6
8	1
9	1
10	1
11	3
12	3
13	3
14	6
15	10
16	1
17	1
18	1
19	3
20	1
21	1
22	3
23	6
24	3
25	3
26	3
27	9
28	6
29	6
30	10
31	15
32	1
33	1
34	1
35	3
36	1
37	1
38	3
39	6
40	1
41	1
42	1
43	3
44	3
45	3
46	6
47	10
48	3
49	3
50	3
51	9
52	3
53	3
54	9
55	18
56	6
57	6
58	6
59	18
60	10
61	10
62	15
63	21
64	1
65	1
66	1
67	3
68	1
69	1
70	3
71	6
72	1
73	1
74	1
75	3
76	3
77	3
78	6
79	10
80	1
81	1
82	1
83	3
84	1
85	1
86	3
87	6
88	3
89	3
90	3
91	9
92	6
93	6
94	10
95	15

n	a(n)
1	1
2	1
3	3
4	1
5	1
6	3
7	6
8	1
9	1
10	1
11	3
12	3
13	3
14	6
15	10
16	1
17	1
18	1
19	3
20	1
21	1
22	3
23	6
24	3
25	3
26	3
27	9
28	6
29	6
30	10
31	15
32	1
33	1
34	1
35	3
36	1
37	1
38	3
39	6
40	1
41	1
42	1
43	3
44	3
45	3
46	6
47	10
48	3
49	3
50	3
51	9
52	3
53	3
54	9
55	18
56	6
57	6
58	6
59	18
60	10
61	10
62	15
63	21
64	1
65	1
66	1
67	3
68	1
69	1
70	3
71	6
72	1
73	1
74	1
75	3
76	3
77	3
78	6
79	10
80	1
81	1
82	1
83	3
84	1
85	1
86	3
87	6
88	3
89	3
90	3
91	9
92	6
93	6
94	10
95	15

cp's OEIS Frontend

A245541 Write n>=1 as either n=2^k-2^r with 0 <= r <= k-1, in which case a(2^k-2^r)=(k-r)*(k-r+1)/2, or as n=2^k-2^r+j with 2 <= r <= k-1, 1 <= j < 2^r-1, in which case a(2^k-2^r+j)=((k-r)*(k-r+1)/2)*a(j).

Table of values

List of values

A245541 Write n>=1 as either n=2^k-2^r with 0 <= r <= k-1, in which case a(2^k-2^r)=(k-r)(k-r+1)/2, or as n=2^k-2^r+j with 2 <= r <= k-1, 1 <= j < 2^r-1, in which case a(2^k-2^r+j)=((k-r)(k-r+1)/2)*a(j).

n	a(n)
1	1
2	1
3	3
4	1
5	1
6	3
7	6
8	1
9	1
10	1
11	3
12	3
13	3
14	6
15	10
16	1
17	1
18	1
19	3
20	1
21	1
22	3
23	6
24	3
25	3
26	3
27	9
28	6
29	6
30	10
31	15
32	1
33	1
34	1
35	3
36	1
37	1
38	3
39	6
40	1
41	1
42	1
43	3
44	3
45	3
46	6
47	10
48	3
49	3
50	3
51	9
52	3
53	3
54	9
55	18
56	6
57	6
58	6
59	18
60	10
61	10
62	15
63	21
64	1
65	1
66	1
67	3
68	1
69	1
70	3
71	6
72	1
73	1
74	1
75	3
76	3
77	3
78	6
79	10
80	1
81	1
82	1
83	3
84	1
85	1
86	3
87	6
88	3
89	3
90	3
91	9
92	6
93	6
94	10
95	15