A033953 - cp's OEIS frontend

A033953 Write 0,1,2,... in a clockwise spiral on a square lattice, writing each digit at a separate lattice point, starting with 0 at the origin and 1 at x=0, y=-1; sequence gives the numbers on the positive x-axis.

n	a(n)
0	0
1	7
2	1
3	7
4	4
5	2
6	8
7	1
8	1
9	3
10	1
11	2
12	0
13	2
14	3
15	1
16	3
17	4
18	6
19	5
20	5
21	5
22	7
23	7
24	8
25	8
26	9
27	6
28	8
29	1
30	1
31	1
32	2
33	3
34	1
35	8
36	0
37	6
38	1
39	7
40	0
41	9
42	2
43	8
44	4
45	3
46	2
47	1
48	1
49	7
50	2
51	6
52	2
53	1
54	3
55	3
56	5
57	5
58	3
59	2
60	2
61	0
62	4
63	3
64	2
65	5
66	4
67	6
68	5
69	0
70	5
71	1
72	1
73	6
74	5
75	8
76	1
77	2
78	6
79	7
80	3
81	8
82	7
83	8
84	9
85	5
86	7
87	1
88	8
89	2
90	8
91	6
92	1
93	9
94	9
95	3
96	6
97	7
98	9
99	0
100	1
101	4
102	6
103	1
104	0

[0, 7, 1, 7, 4, 2, 8, 1, 1, 3, 1, 2, 0, 2, 3, 1, 3, 4, 6, 5, 5, 5, 7, 7, 8, 8, 9, 6, 8, 1, 1, 1, 2, 3, 1, 8, 0, 6, 1, 7, 0, 9, 2, 8, 4, 3, 2, 1, 1, 7, 2, 6, 2, 1, 3, 3, 5, 5, 3, 2, 2, 0, 4, 3, 2, 5, 4, 6, 5, 0, 5, 1, 1, 6, 5, 8, 1, 2, 6, 7, 3, 8, 7, 8, 9, 5, 7, 1, 8, 2, 8, 6, 1, 9, 9, 3, 6, 7, 9, 0, 1, 4, 6, 1, 0]

cp's OEIS Frontend

A033953 Write 0,1,2,... in a clockwise spiral on a square lattice, writing each digit at a separate lattice point, starting with 0 at the origin and 1 at x=0, y=-1; sequence gives the numbers on the positive x-axis.

Table of values

List of values

n	a(n)
0	0
1	7
2	1
3	7
4	4
5	2
6	8
7	1
8	1
9	3
10	1
11	2
12	0
13	2
14	3
15	1
16	3
17	4
18	6
19	5
20	5
21	5
22	7
23	7
24	8
25	8
26	9
27	6
28	8
29	1
30	1
31	1
32	2
33	3
34	1
35	8
36	0
37	6
38	1
39	7
40	0
41	9
42	2
43	8
44	4
45	3
46	2
47	1
48	1
49	7
50	2
51	6
52	2
53	1
54	3
55	3
56	5
57	5
58	3
59	2
60	2
61	0
62	4
63	3
64	2
65	5
66	4
67	6
68	5
69	0
70	5
71	1
72	1
73	6
74	5
75	8
76	1
77	2
78	6
79	7
80	3
81	8
82	7
83	8
84	9
85	5
86	7
87	1
88	8
89	2
90	8
91	6
92	1
93	9
94	9
95	3
96	6
97	7
98	9
99	0
100	1
101	4
102	6
103	1
104	0

n	a(n)
0	0
1	7
2	1
3	7
4	4
5	2
6	8
7	1
8	1
9	3
10	1
11	2
12	0
13	2
14	3
15	1
16	3
17	4
18	6
19	5
20	5
21	5
22	7
23	7
24	8
25	8
26	9
27	6
28	8
29	1
30	1
31	1
32	2
33	3
34	1
35	8
36	0
37	6
38	1
39	7
40	0
41	9
42	2
43	8
44	4
45	3
46	2
47	1
48	1
49	7
50	2
51	6
52	2
53	1
54	3
55	3
56	5
57	5
58	3
59	2
60	2
61	0
62	4
63	3
64	2
65	5
66	4
67	6
68	5
69	0
70	5
71	1
72	1
73	6
74	5
75	8
76	1
77	2
78	6
79	7
80	3
81	8
82	7
83	8
84	9
85	5
86	7
87	1
88	8
89	2
90	8
91	6
92	1
93	9
94	9
95	3
96	6
97	7
98	9
99	0
100	1
101	4
102	6
103	1
104	0

n	a(n)
0	0
1	7
2	1
3	7
4	4
5	2
6	8
7	1
8	1
9	3
10	1
11	2
12	0
13	2
14	3
15	1
16	3
17	4
18	6
19	5
20	5
21	5
22	7
23	7
24	8
25	8
26	9
27	6
28	8
29	1
30	1
31	1
32	2
33	3
34	1
35	8
36	0
37	6
38	1
39	7
40	0
41	9
42	2
43	8
44	4
45	3
46	2
47	1
48	1
49	7
50	2
51	6
52	2
53	1
54	3
55	3
56	5
57	5
58	3
59	2
60	2
61	0
62	4
63	3
64	2
65	5
66	4
67	6
68	5
69	0
70	5
71	1
72	1
73	6
74	5
75	8
76	1
77	2
78	6
79	7
80	3
81	8
82	7
83	8
84	9
85	5
86	7
87	1
88	8
89	2
90	8
91	6
92	1
93	9
94	9
95	3
96	6
97	7
98	9
99	0
100	1
101	4
102	6
103	1
104	0