A231713 - cp's OEIS frontend

A231713 Square array A(i,j) = the sum of absolute values of digit differences in the matching positions of the factorial base representations of i and j, for i >= 0, j >= 0, read by antidiagonals.

n	a(n)
0	0
1	1
2	1
3	1
4	0
5	1
6	2
7	2
8	2
9	2
10	2
11	1
12	0
13	1
14	2
15	3
16	3
17	1
18	1
19	3
20	3
21	1
22	2
23	1
24	0
25	1
26	2
27	1
28	2
29	2
30	2
31	2
32	2
33	2
34	2
35	2
36	2
37	1
38	2
39	1
40	0
41	1
42	2
43	1
44	2
45	3
46	3
47	3
48	3
49	1
50	1
51	3
52	3
53	3
54	3
55	3
56	2
57	1
58	2
59	3
60	0
61	3
62	2
63	1
64	2
65	3
66	4
67	4
68	2
69	2
70	4
71	4
72	4
73	4
74	2
75	2
76	4
77	4
78	2
79	3
80	2
81	1
82	2
83	3
84	0
85	3
86	2
87	1
88	2
89	3
90	2
91	3
92	3
93	3
94	3
95	3
96	3
97	1
98	1
99	3
100	3
101	3
102	3
103	3
104	3
105	3
106	2
107	3
108	2
109	1
110	2
111	1
112	0
113	1
114	2
115	1
116	2
117	3
118	2
119	3

[0, 1, 1, 1, 0, 1, 2, 2, 2, 2, 2, 1, 0, 1, 2, 3, 3, 1, 1, 3, 3, 1, 2, 1, 0, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 0, 1, 2, 1, 2, 3, 3, 3, 3, 1, 1, 3, 3, 3, 3, 3, 2, 1, 2, 3, 0, 3, 2, 1, 2, 3, 4, 4, 2, 2, 4, 4, 4, 4, 2, 2, 4, 4, 2, 3, 2, 1, 2, 3, 0, 3, 2, 1, 2, 3, 2, 3, 3, 3, 3, 3, 3, 1, 1, 3, 3, 3, 3, 3, 3, 3, 2, 3, 2, 1, 2, 1, 0, 1, 2, 1, 2, 3, 2, 3]

cp's OEIS Frontend

A231713 Square array A(i,j) = the sum of absolute values of digit differences in the matching positions of the factorial base representations of i and j, for i >= 0, j >= 0, read by antidiagonals.

Table of values

List of values

n	a(n)
0	0
1	1
2	1
3	1
4	0
5	1
6	2
7	2
8	2
9	2
10	2
11	1
12	0
13	1
14	2
15	3
16	3
17	1
18	1
19	3
20	3
21	1
22	2
23	1
24	0
25	1
26	2
27	1
28	2
29	2
30	2
31	2
32	2
33	2
34	2
35	2
36	2
37	1
38	2
39	1
40	0
41	1
42	2
43	1
44	2
45	3
46	3
47	3
48	3
49	1
50	1
51	3
52	3
53	3
54	3
55	3
56	2
57	1
58	2
59	3
60	0
61	3
62	2
63	1
64	2
65	3
66	4
67	4
68	2
69	2
70	4
71	4
72	4
73	4
74	2
75	2
76	4
77	4
78	2
79	3
80	2
81	1
82	2
83	3
84	0
85	3
86	2
87	1
88	2
89	3
90	2
91	3
92	3
93	3
94	3
95	3
96	3
97	1
98	1
99	3
100	3
101	3
102	3
103	3
104	3
105	3
106	2
107	3
108	2
109	1
110	2
111	1
112	0
113	1
114	2
115	1
116	2
117	3
118	2
119	3

n	a(n)
0	0
1	1
2	1
3	1
4	0
5	1
6	2
7	2
8	2
9	2
10	2
11	1
12	0
13	1
14	2
15	3
16	3
17	1
18	1
19	3
20	3
21	1
22	2
23	1
24	0
25	1
26	2
27	1
28	2
29	2
30	2
31	2
32	2
33	2
34	2
35	2
36	2
37	1
38	2
39	1
40	0
41	1
42	2
43	1
44	2
45	3
46	3
47	3
48	3
49	1
50	1
51	3
52	3
53	3
54	3
55	3
56	2
57	1
58	2
59	3
60	0
61	3
62	2
63	1
64	2
65	3
66	4
67	4
68	2
69	2
70	4
71	4
72	4
73	4
74	2
75	2
76	4
77	4
78	2
79	3
80	2
81	1
82	2
83	3
84	0
85	3
86	2
87	1
88	2
89	3
90	2
91	3
92	3
93	3
94	3
95	3
96	3
97	1
98	1
99	3
100	3
101	3
102	3
103	3
104	3
105	3
106	2
107	3
108	2
109	1
110	2
111	1
112	0
113	1
114	2
115	1
116	2
117	3
118	2
119	3

n	a(n)
0	0
1	1
2	1
3	1
4	0
5	1
6	2
7	2
8	2
9	2
10	2
11	1
12	0
13	1
14	2
15	3
16	3
17	1
18	1
19	3
20	3
21	1
22	2
23	1
24	0
25	1
26	2
27	1
28	2
29	2
30	2
31	2
32	2
33	2
34	2
35	2
36	2
37	1
38	2
39	1
40	0
41	1
42	2
43	1
44	2
45	3
46	3
47	3
48	3
49	1
50	1
51	3
52	3
53	3
54	3
55	3
56	2
57	1
58	2
59	3
60	0
61	3
62	2
63	1
64	2
65	3
66	4
67	4
68	2
69	2
70	4
71	4
72	4
73	4
74	2
75	2
76	4
77	4
78	2
79	3
80	2
81	1
82	2
83	3
84	0
85	3
86	2
87	1
88	2
89	3
90	2
91	3
92	3
93	3
94	3
95	3
96	3
97	1
98	1
99	3
100	3
101	3
102	3
103	3
104	3
105	3
106	2
107	3
108	2
109	1
110	2
111	1
112	0
113	1
114	2
115	1
116	2
117	3
118	2
119	3