A124258 - cp's OEIS frontend

A124258 Triangle whose rows are sequences of increasing and decreasing squares: 1; 1,4,1; 1,4,9,4,1; ...

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

[1, 1, 4, 1, 1, 4, 9, 4, 1, 1, 4, 9, 16, 9, 4, 1, 1, 4, 9, 16, 25, 16, 9, 4, 1, 1, 4, 9, 16, 25, 36, 25, 16, 9, 4, 1, 1, 4, 9, 16, 25, 36, 49, 36, 25, 16, 9, 4, 1, 1, 4, 9, 16, 25, 36, 49, 64, 49, 36, 25, 16, 9, 4, 1, 1, 4, 9, 16, 25, 36, 49, 64, 81, 64, 49, 36, 25, 16, 9, 4, 1, 1, 4, 9, 16]

cp's OEIS Frontend

A124258 Triangle whose rows are sequences of increasing and decreasing squares: 1; 1,4,1; 1,4,9,4,1; ...

Table of values

List of values

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

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

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