A270103 - cp's OEIS frontend

A270103 Array read by antidiagonals: T(n, k) is the sum of the integer part of the n-th roots of natural numbers less than k.

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

[1, 3, 1, 6, 2, 1, 10, 3, 2, 1, 15, 5, 3, 2, 1, 21, 7, 4, 3, 2, 1, 28, 9, 5, 4, 3, 2, 1, 36, 11, 6, 5, 4, 3, 2, 1, 45, 13, 7, 6, 5, 4, 3, 2, 1, 55, 16, 9, 7, 6, 5, 4, 3, 2, 1, 66, 19, 11, 8, 7, 6, 5, 4, 3, 2, 1]

cp's OEIS Frontend

A270103 Array read by antidiagonals: T(n, k) is the sum of the integer part of the n-th roots of natural numbers less than k.

Table of values

List of values

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

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

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