A286155 - cp's OEIS frontend

A286155 Square array A(n,k) read by antidiagonals, A(n,n) = -n, otherwise, if n > k, A(n,k) = T(n XOR k,k), else A(n,k) = T(n,n XOR k), where T(n,k) is sequence A000027 considered as a two-dimensional table and XOR is bitwise-xor (A003987).

n	a(n)
1	-1
2	4
3	6
4	2
5	-2
6	3
7	11
8	3
9	2
10	15
11	7
12	23
13	-3
14	27
15	10
16	22
17	30
18	39
19	43
20	35
21	28
22	16
23	12
24	31
25	-4
26	34
27	14
28	21
29	37
30	17
31	24
32	10
33	7
34	26
35	20
36	45
37	29
38	57
39	18
40	14
41	-5
42	12
43	19
44	65
45	36
46	56
47	68
48	81
49	19
50	26
51	24
52	18
53	89
54	77
55	66
56	46
57	38
58	69
59	109
60	20
61	-6
62	17
63	117
64	76
65	44
66	55
67	79
68	47
69	58
70	124
71	141
72	21
73	16
74	149
75	133
76	64
77	54
78	91
79	67
80	107
81	48
82	140
83	125
84	177
85	-7
86	185
87	132
88	150
89	53
90	119

[-1, 4, 6, 2, -2, 3, 11, 3, 2, 15, 7, 23, -3, 27, 10, 22, 30, 39, 43, 35, 28, 16, 12, 31, -4, 34, 14, 21, 37, 17, 24, 10, 7, 26, 20, 45, 29, 57, 18, 14, -5, 12, 19, 65, 36, 56, 68, 81, 19, 26, 24, 18, 89, 77, 66, 46, 38, 69, 109, 20, -6, 17, 117, 76, 44, 55, 79, 47, 58, 124, 141, 21, 16, 149, 133, 64, 54, 91, 67, 107, 48, 140, 125, 177, -7, 185, 132, 150, 53, 119]

cp's OEIS Frontend

A286155 Square array A(n,k) read by antidiagonals, A(n,n) = -n, otherwise, if n > k, A(n,k) = T(n XOR k,k), else A(n,k) = T(n,n XOR k), where T(n,k) is sequence A000027 considered as a two-dimensional table and XOR is bitwise-xor (A003987).

Table of values

List of values

n	a(n)
1	-1
2	4
3	6
4	2
5	-2
6	3
7	11
8	3
9	2
10	15
11	7
12	23
13	-3
14	27
15	10
16	22
17	30
18	39
19	43
20	35
21	28
22	16
23	12
24	31
25	-4
26	34
27	14
28	21
29	37
30	17
31	24
32	10
33	7
34	26
35	20
36	45
37	29
38	57
39	18
40	14
41	-5
42	12
43	19
44	65
45	36
46	56
47	68
48	81
49	19
50	26
51	24
52	18
53	89
54	77
55	66
56	46
57	38
58	69
59	109
60	20
61	-6
62	17
63	117
64	76
65	44
66	55
67	79
68	47
69	58
70	124
71	141
72	21
73	16
74	149
75	133
76	64
77	54
78	91
79	67
80	107
81	48
82	140
83	125
84	177
85	-7
86	185
87	132
88	150
89	53
90	119

n	a(n)
1	-1
2	4
3	6
4	2
5	-2
6	3
7	11
8	3
9	2
10	15
11	7
12	23
13	-3
14	27
15	10
16	22
17	30
18	39
19	43
20	35
21	28
22	16
23	12
24	31
25	-4
26	34
27	14
28	21
29	37
30	17
31	24
32	10
33	7
34	26
35	20
36	45
37	29
38	57
39	18
40	14
41	-5
42	12
43	19
44	65
45	36
46	56
47	68
48	81
49	19
50	26
51	24
52	18
53	89
54	77
55	66
56	46
57	38
58	69
59	109
60	20
61	-6
62	17
63	117
64	76
65	44
66	55
67	79
68	47
69	58
70	124
71	141
72	21
73	16
74	149
75	133
76	64
77	54
78	91
79	67
80	107
81	48
82	140
83	125
84	177
85	-7
86	185
87	132
88	150
89	53
90	119

n	a(n)
1	-1
2	4
3	6
4	2
5	-2
6	3
7	11
8	3
9	2
10	15
11	7
12	23
13	-3
14	27
15	10
16	22
17	30
18	39
19	43
20	35
21	28
22	16
23	12
24	31
25	-4
26	34
27	14
28	21
29	37
30	17
31	24
32	10
33	7
34	26
35	20
36	45
37	29
38	57
39	18
40	14
41	-5
42	12
43	19
44	65
45	36
46	56
47	68
48	81
49	19
50	26
51	24
52	18
53	89
54	77
55	66
56	46
57	38
58	69
59	109
60	20
61	-6
62	17
63	117
64	76
65	44
66	55
67	79
68	47
69	58
70	124
71	141
72	21
73	16
74	149
75	133
76	64
77	54
78	91
79	67
80	107
81	48
82	140
83	125
84	177
85	-7
86	185
87	132
88	150
89	53
90	119