A053615 - cp's OEIS frontend

A053615 Pyramidal sequence: distance to nearest product of two consecutive integers (promic or heteromecic numbers).

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

[0, 1, 0, 1, 2, 1, 0, 1, 2, 3, 2, 1, 0, 1, 2, 3, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 7, 6, 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 7, 6, 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 9, 8, 7]

cp's OEIS Frontend

A053615 Pyramidal sequence: distance to nearest product of two consecutive integers (promic or heteromecic numbers).

Table of values

List of values

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

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

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