A248636 - cp's OEIS frontend

A248636 Least k such that 33/8- sum{(h^3)/3^h, h = 1..k} < 1/4^n.

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

[7, 9, 10, 12, 13, 15, 17, 18, 19, 21, 22, 24, 25, 27, 28, 29, 31, 32, 34, 35, 36, 38, 39, 40, 42, 43, 44, 46, 47, 48, 50, 51, 52, 54, 55, 56, 58, 59, 60, 62, 63, 64, 66, 67, 68, 70, 71, 72, 73, 75, 76, 77, 79, 80, 81, 83, 84, 85, 87, 88, 89, 90, 92, 93, 94]

cp's OEIS Frontend

A248636 Least k such that 33/8- sum{(h^3)/3^h, h = 1..k} < 1/4^n.

Table of values

List of values

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

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

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