A292836 - cp's OEIS frontend

A292836 a(n) is the minimum number of steps to a terminal state during the following procedure: start with n piles each containing one stone; any number of stones can be transferred between piles of equal size.

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

[0, 1, 1, 3, 3, 4, 4, 6, 7, 7, 8, 10, 10, 11, 11, 13, 14, 14, 15, 17, 17, 18, 18, 20, 21, 22, 23, 24, 24, 25, 26, 28, 29, 29, 30, 31, 32, 33, 33, 35, 36, 37, 38, 39, 39, 40, 41, 43, 44, 44, 45, 46, 47, 48, 48, 50, 51, 52, 53, 54, 54, 55, 56, 58, 59, 59, 60, 62, 62]

cp's OEIS Frontend

A292836 a(n) is the minimum number of steps to a terminal state during the following procedure: start with n piles each containing one stone; any number of stones can be transferred between piles of equal size.

Table of values

List of values

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

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

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