A101866 - cp's OEIS frontend

A101866 Array read by antidiagonals: Arnoux's product T(n,k) = n * k = nk + ceiling(phi n) ceiling(phi k), where phi = (1 + sqrt(5))/2 ; m, n >= 1.

n	a(n)
1	5
2	10
3	10
4	13
5	20
6	13
7	18
8	26
9	26
10	18
11	23
12	36
13	34
14	36
15	23
16	26
17	46
18	47
19	47
20	46
21	26
22	31
23	52
24	60
25	65
26	60
27	52
28	31
29	34
30	62
31	68
32	83
33	83
34	68
35	62
36	34
37	39
38	68
39	81
40	94
41	106
42	94
43	81
44	68
45	39
46	44
47	78
48	89
49	112
50	120
51	120
52	112
53	89
54	78
55	44
56	47
57	88
58	102
59	123
60	143
61	136
62	143
63	123
64	102
65	88
66	47
67	52

[5, 10, 10, 13, 20, 13, 18, 26, 26, 18, 23, 36, 34, 36, 23, 26, 46, 47, 47, 46, 26, 31, 52, 60, 65, 60, 52, 31, 34, 62, 68, 83, 83, 68, 62, 34, 39, 68, 81, 94, 106, 94, 81, 68, 39, 44, 78, 89, 112, 120, 120, 112, 89, 78, 44, 47, 88, 102, 123, 143, 136, 143, 123, 102, 88, 47, 52]

cp's OEIS Frontend

A101866 Array read by antidiagonals: Arnoux's product T(n,k) = n * k = nk + ceiling(phi n) ceiling(phi k), where phi = (1 + sqrt(5))/2 ; m, n >= 1.

Table of values

List of values

n	a(n)
1	5
2	10
3	10
4	13
5	20
6	13
7	18
8	26
9	26
10	18
11	23
12	36
13	34
14	36
15	23
16	26
17	46
18	47
19	47
20	46
21	26
22	31
23	52
24	60
25	65
26	60
27	52
28	31
29	34
30	62
31	68
32	83
33	83
34	68
35	62
36	34
37	39
38	68
39	81
40	94
41	106
42	94
43	81
44	68
45	39
46	44
47	78
48	89
49	112
50	120
51	120
52	112
53	89
54	78
55	44
56	47
57	88
58	102
59	123
60	143
61	136
62	143
63	123
64	102
65	88
66	47
67	52

n	a(n)
1	5
2	10
3	10
4	13
5	20
6	13
7	18
8	26
9	26
10	18
11	23
12	36
13	34
14	36
15	23
16	26
17	46
18	47
19	47
20	46
21	26
22	31
23	52
24	60
25	65
26	60
27	52
28	31
29	34
30	62
31	68
32	83
33	83
34	68
35	62
36	34
37	39
38	68
39	81
40	94
41	106
42	94
43	81
44	68
45	39
46	44
47	78
48	89
49	112
50	120
51	120
52	112
53	89
54	78
55	44
56	47
57	88
58	102
59	123
60	143
61	136
62	143
63	123
64	102
65	88
66	47
67	52

n	a(n)
1	5
2	10
3	10
4	13
5	20
6	13
7	18
8	26
9	26
10	18
11	23
12	36
13	34
14	36
15	23
16	26
17	46
18	47
19	47
20	46
21	26
22	31
23	52
24	60
25	65
26	60
27	52
28	31
29	34
30	62
31	68
32	83
33	83
34	68
35	62
36	34
37	39
38	68
39	81
40	94
41	106
42	94
43	81
44	68
45	39
46	44
47	78
48	89
49	112
50	120
51	120
52	112
53	89
54	78
55	44
56	47
57	88
58	102
59	123
60	143
61	136
62	143
63	123
64	102
65	88
66	47
67	52