A056221 - cp's OEIS frontend

A056221 Image of primes (A000040) under "little Hankel" transform that sends [c_0, c_1, ...] to [d_0, d_1, ...] where d_n = c_n^2 - c_{n+1}*c_{n-1}.

n	a(n)
1	-1
2	4
3	-6
4	30
5	-18
6	42
7	-30
8	-22
9	128
10	-112
11	98
12	90
13	-78
14	-70
15	36
16	248
17	-232
18	158
19	150
20	-280
21	182
22	-142
23	-130
24	420
25	210
26	-198
27	222
28	-210
29	-1074
30	1326
31	-238
32	560
33	-1092
34	1212
35	-592
36	36
37	350
38	-310
39	36
40	728
41	-1428
42	1548
43	-378
44	402
45	-1966
46	144
47	1832
48	462
49	-450
50	-442

[-1, 4, -6, 30, -18, 42, -30, -22, 128, -112, 98, 90, -78, -70, 36, 248, -232, 158, 150, -280, 182, -142, -130, 420, 210, -198, 222, -210, -1074, 1326, -238, 560, -1092, 1212, -592, 36, 350, -310, 36, 728, -1428, 1548, -378, 402, -1966, 144, 1832, 462, -450, -442]

cp's OEIS Frontend

A056221 Image of primes (A000040) under "little Hankel" transform that sends [c_0, c_1, ...] to [d_0, d_1, ...] where d_n = c_n^2 - c_{n+1}*c_{n-1}.

Table of values

List of values