A365747 - cp's OEIS frontend

A365747 Decimal expansion of Trinv(1 + Trinv(2 + Trinv(3 + Trinv(4 + ... )))) where Trinv(n) = (sqrt(8*n+1)-1)/2.

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

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

cp's OEIS Frontend

A365747 Decimal expansion of Trinv(1 + Trinv(2 + Trinv(3 + Trinv(4 + ... )))) where Trinv(n) = (sqrt(8*n+1)-1)/2.

Table of values

List of values

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

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

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