A257587 - cp's OEIS frontend

A257587 If n = abcd... in decimal, a(n) = a^2 - b^2 + c^2 - d^2 + ...

n	a(n)
0	0
1	1
2	4
3	9
4	16
5	25
6	36
7	49
8	64
9	81
10	1
11	0
12	-3
13	-8
14	-15
15	-24
16	-35
17	-48
18	-63
19	-80
20	4
21	3
22	0
23	-5
24	-12
25	-21
26	-32
27	-45
28	-60
29	-77
30	9
31	8
32	5
33	0
34	-7
35	-16
36	-27
37	-40
38	-55
39	-72
40	16
41	15
42	12
43	7
44	0
45	-9
46	-20
47	-33
48	-48
49	-65
50	25
51	24
52	21
53	16
54	9
55	0
56	-11
57	-24
58	-39
59	-56
60	36
61	35
62	32

[0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 1, 0, -3, -8, -15, -24, -35, -48, -63, -80, 4, 3, 0, -5, -12, -21, -32, -45, -60, -77, 9, 8, 5, 0, -7, -16, -27, -40, -55, -72, 16, 15, 12, 7, 0, -9, -20, -33, -48, -65, 25, 24, 21, 16, 9, 0, -11, -24, -39, -56, 36, 35, 32]

cp's OEIS Frontend

A257587 If n = abcd... in decimal, a(n) = a^2 - b^2 + c^2 - d^2 + ...

Table of values

List of values

n	a(n)
0	0
1	1
2	4
3	9
4	16
5	25
6	36
7	49
8	64
9	81
10	1
11	0
12	-3
13	-8
14	-15
15	-24
16	-35
17	-48
18	-63
19	-80
20	4
21	3
22	0
23	-5
24	-12
25	-21
26	-32
27	-45
28	-60
29	-77
30	9
31	8
32	5
33	0
34	-7
35	-16
36	-27
37	-40
38	-55
39	-72
40	16
41	15
42	12
43	7
44	0
45	-9
46	-20
47	-33
48	-48
49	-65
50	25
51	24
52	21
53	16
54	9
55	0
56	-11
57	-24
58	-39
59	-56
60	36
61	35
62	32

n	a(n)
0	0
1	1
2	4
3	9
4	16
5	25
6	36
7	49
8	64
9	81
10	1
11	0
12	-3
13	-8
14	-15
15	-24
16	-35
17	-48
18	-63
19	-80
20	4
21	3
22	0
23	-5
24	-12
25	-21
26	-32
27	-45
28	-60
29	-77
30	9
31	8
32	5
33	0
34	-7
35	-16
36	-27
37	-40
38	-55
39	-72
40	16
41	15
42	12
43	7
44	0
45	-9
46	-20
47	-33
48	-48
49	-65
50	25
51	24
52	21
53	16
54	9
55	0
56	-11
57	-24
58	-39
59	-56
60	36
61	35
62	32

n	a(n)
0	0
1	1
2	4
3	9
4	16
5	25
6	36
7	49
8	64
9	81
10	1
11	0
12	-3
13	-8
14	-15
15	-24
16	-35
17	-48
18	-63
19	-80
20	4
21	3
22	0
23	-5
24	-12
25	-21
26	-32
27	-45
28	-60
29	-77
30	9
31	8
32	5
33	0
34	-7
35	-16
36	-27
37	-40
38	-55
39	-72
40	16
41	15
42	12
43	7
44	0
45	-9
46	-20
47	-33
48	-48
49	-65
50	25
51	24
52	21
53	16
54	9
55	0
56	-11
57	-24
58	-39
59	-56
60	36
61	35
62	32