A121459 - cp's OEIS frontend

A121459 Let f(n) = A004001(n)^2 - A005185(n)^2. Then a(n) = f(abs(f(n-1))) + f(abs(n - f(n-1))).

n	a(n)
1	0
2	-3
3	-14
4	-18
5	-7
6	-9
7	-47
8	-51
9	0
10	-15
11	-15
12	-48
13	-17
14	-36
15	57
16	-151
17	0
18	-63
19	0
20	-11
21	0
22	25
23	26
24	368
25	29
26	-5
27	-96
28	-33
29	0
30	-144
31	2275
32	-466
33	-180
34	433
35	472
36	0
37	-43
38	316
39	0
40	0
41	47
42	-302
43	49
44	152
45	1122
46	945
47	1273
48	10170
49	589
50	1310
51	121
52	54
53	3117
54	0
55	177
56	2141
57	-1280
58	-5
59	310
60	0

[0, -3, -14, -18, -7, -9, -47, -51, 0, -15, -15, -48, -17, -36, 57, -151, 0, -63, 0, -11, 0, 25, 26, 368, 29, -5, -96, -33, 0, -144, 2275, -466, -180, 433, 472, 0, -43, 316, 0, 0, 47, -302, 49, 152, 1122, 945, 1273, 10170, 589, 1310, 121, 54, 3117, 0, 177, 2141, -1280, -5, 310, 0]

cp's OEIS Frontend

A121459 Let f(n) = A004001(n)^2 - A005185(n)^2. Then a(n) = f(abs(f(n-1))) + f(abs(n - f(n-1))).

Table of values

List of values