A154476 - cp's OEIS frontend

A154476 Number of e's in each iteration of Wolfram's e[x_][y_] -> x[x[y]] symbolic rewriting system, starting from the initial state e[e[e][e]][e][e].

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

[6, 8, 8, 9, 9, 15, 20, 25, 29, 32, 37, 43, 46, 48, 50, 51, 51, 51, 52, 52, 52, 55, 56, 56, 56, 57, 57, 57, 59, 61, 62, 62, 62, 63, 63, 63, 66, 67, 67, 67, 68, 68, 68, 71, 73, 75, 76, 76, 76, 77, 77, 77, 80, 81, 81, 81, 82, 82, 82, 84, 86, 87, 87, 87, 88, 88, 88, 93, 94, 94]

cp's OEIS Frontend

A154476 Number of e's in each iteration of Wolfram's e[x_][y_] -> x[x[y]] symbolic rewriting system, starting from the initial state e[e[e][e]][e][e].

Table of values

List of values

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

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

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