A101646 - cp's OEIS frontend

A101646 Array read by antidiagonals: T(n,k) = variant of Knuth's Fibonacci (or circle) product of n and k (A101330). Sometimes called the "arroba" product.

n	a(n)
1	1
2	2
3	2
4	3
5	3
6	3
7	4
8	5
9	5
10	4
11	5
12	7
13	8
14	7
15	5
16	6
17	8
18	11
19	11
20	8
21	6
22	7
23	10
24	13
25	15
26	13
27	10
28	7
29	8
30	11
31	16
32	18
33	18
34	16
35	11
36	8
37	9
38	13
39	18
40	22
41	21
42	22
43	18
44	13
45	9
46	10
47	15
48	21
49	25
50	26
51	26
52	25
53	21
54	15
55	10
56	11
57	16
58	24
59	29
60	29
61	32
62	29
63	29
64	24
65	16
66	11
67	12
68	18
69	26
70	33
71	34
72	36
73	36
74	34
75	33
76	26
77	18
78	12

[1, 2, 2, 3, 3, 3, 4, 5, 5, 4, 5, 7, 8, 7, 5, 6, 8, 11, 11, 8, 6, 7, 10, 13, 15, 13, 10, 7, 8, 11, 16, 18, 18, 16, 11, 8, 9, 13, 18, 22, 21, 22, 18, 13, 9, 10, 15, 21, 25, 26, 26, 25, 21, 15, 10, 11, 16, 24, 29, 29, 32, 29, 29, 24, 16, 11, 12, 18, 26, 33, 34, 36, 36, 34, 33, 26, 18, 12]

cp's OEIS Frontend

A101646 Array read by antidiagonals: T(n,k) = variant of Knuth's Fibonacci (or circle) product of n and k (A101330). Sometimes called the "arroba" product.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	3
5	3
6	3
7	4
8	5
9	5
10	4
11	5
12	7
13	8
14	7
15	5
16	6
17	8
18	11
19	11
20	8
21	6
22	7
23	10
24	13
25	15
26	13
27	10
28	7
29	8
30	11
31	16
32	18
33	18
34	16
35	11
36	8
37	9
38	13
39	18
40	22
41	21
42	22
43	18
44	13
45	9
46	10
47	15
48	21
49	25
50	26
51	26
52	25
53	21
54	15
55	10
56	11
57	16
58	24
59	29
60	29
61	32
62	29
63	29
64	24
65	16
66	11
67	12
68	18
69	26
70	33
71	34
72	36
73	36
74	34
75	33
76	26
77	18
78	12

n	a(n)
1	1
2	2
3	2
4	3
5	3
6	3
7	4
8	5
9	5
10	4
11	5
12	7
13	8
14	7
15	5
16	6
17	8
18	11
19	11
20	8
21	6
22	7
23	10
24	13
25	15
26	13
27	10
28	7
29	8
30	11
31	16
32	18
33	18
34	16
35	11
36	8
37	9
38	13
39	18
40	22
41	21
42	22
43	18
44	13
45	9
46	10
47	15
48	21
49	25
50	26
51	26
52	25
53	21
54	15
55	10
56	11
57	16
58	24
59	29
60	29
61	32
62	29
63	29
64	24
65	16
66	11
67	12
68	18
69	26
70	33
71	34
72	36
73	36
74	34
75	33
76	26
77	18
78	12

n	a(n)
1	1
2	2
3	2
4	3
5	3
6	3
7	4
8	5
9	5
10	4
11	5
12	7
13	8
14	7
15	5
16	6
17	8
18	11
19	11
20	8
21	6
22	7
23	10
24	13
25	15
26	13
27	10
28	7
29	8
30	11
31	16
32	18
33	18
34	16
35	11
36	8
37	9
38	13
39	18
40	22
41	21
42	22
43	18
44	13
45	9
46	10
47	15
48	21
49	25
50	26
51	26
52	25
53	21
54	15
55	10
56	11
57	16
58	24
59	29
60	29
61	32
62	29
63	29
64	24
65	16
66	11
67	12
68	18
69	26
70	33
71	34
72	36
73	36
74	34
75	33
76	26
77	18
78	12