A049627 - cp's OEIS frontend

A049627 Array T read by diagonals; T(i,j)=(i+1)*(j+1)-H(i,j), where H is the array in A049615; thus T(i,j) is the number of lattice points in rectangle having diagonal (0,0)-to-(i,j) that are visible from (i,j).

n	a(n)
0	1
1	2
2	2
3	2
4	4
5	2
6	2
7	5
8	5
9	2
10	2
11	6
12	6
13	6
14	2
15	2
16	7
17	8
18	8
19	7
20	2
21	2
22	8
23	9
24	10
25	9
26	8
27	2
28	2
29	9
30	11
31	12
32	12
33	11
34	9
35	2
36	2
37	10
38	12
39	15
40	14
41	15
42	12
43	10
44	2
45	2
46	11
47	14
48	16
49	18
50	18
51	16
52	14
53	11
54	2
55	2
56	12
57	15
58	19
59	19
60	22
61	19
62	19
63	15
64	12
65	2
66	2
67	13
68	17
69	21
70	23
71	24
72	24
73	23
74	21

[1, 2, 2, 2, 4, 2, 2, 5, 5, 2, 2, 6, 6, 6, 2, 2, 7, 8, 8, 7, 2, 2, 8, 9, 10, 9, 8, 2, 2, 9, 11, 12, 12, 11, 9, 2, 2, 10, 12, 15, 14, 15, 12, 10, 2, 2, 11, 14, 16, 18, 18, 16, 14, 11, 2, 2, 12, 15, 19, 19, 22, 19, 19, 15, 12, 2, 2, 13, 17, 21, 23, 24, 24, 23, 21]

cp's OEIS Frontend

A049627 Array T read by diagonals; T(i,j)=(i+1)*(j+1)-H(i,j), where H is the array in A049615; thus T(i,j) is the number of lattice points in rectangle having diagonal (0,0)-to-(i,j) that are visible from (i,j).

Table of values

List of values

n	a(n)
0	1
1	2
2	2
3	2
4	4
5	2
6	2
7	5
8	5
9	2
10	2
11	6
12	6
13	6
14	2
15	2
16	7
17	8
18	8
19	7
20	2
21	2
22	8
23	9
24	10
25	9
26	8
27	2
28	2
29	9
30	11
31	12
32	12
33	11
34	9
35	2
36	2
37	10
38	12
39	15
40	14
41	15
42	12
43	10
44	2
45	2
46	11
47	14
48	16
49	18
50	18
51	16
52	14
53	11
54	2
55	2
56	12
57	15
58	19
59	19
60	22
61	19
62	19
63	15
64	12
65	2
66	2
67	13
68	17
69	21
70	23
71	24
72	24
73	23
74	21

n	a(n)
0	1
1	2
2	2
3	2
4	4
5	2
6	2
7	5
8	5
9	2
10	2
11	6
12	6
13	6
14	2
15	2
16	7
17	8
18	8
19	7
20	2
21	2
22	8
23	9
24	10
25	9
26	8
27	2
28	2
29	9
30	11
31	12
32	12
33	11
34	9
35	2
36	2
37	10
38	12
39	15
40	14
41	15
42	12
43	10
44	2
45	2
46	11
47	14
48	16
49	18
50	18
51	16
52	14
53	11
54	2
55	2
56	12
57	15
58	19
59	19
60	22
61	19
62	19
63	15
64	12
65	2
66	2
67	13
68	17
69	21
70	23
71	24
72	24
73	23
74	21

n	a(n)
0	1
1	2
2	2
3	2
4	4
5	2
6	2
7	5
8	5
9	2
10	2
11	6
12	6
13	6
14	2
15	2
16	7
17	8
18	8
19	7
20	2
21	2
22	8
23	9
24	10
25	9
26	8
27	2
28	2
29	9
30	11
31	12
32	12
33	11
34	9
35	2
36	2
37	10
38	12
39	15
40	14
41	15
42	12
43	10
44	2
45	2
46	11
47	14
48	16
49	18
50	18
51	16
52	14
53	11
54	2
55	2
56	12
57	15
58	19
59	19
60	22
61	19
62	19
63	15
64	12
65	2
66	2
67	13
68	17
69	21
70	23
71	24
72	24
73	23
74	21