A372592 - cp's OEIS frontend

A372592 Irregular triangle read by rows, where the n-th row gives the number of steps in the hydra game when the initial hydra is each of the A000108(n) ordered trees with n edges (ordered by lexicographic order of their corresponding Dyck words as in A063171) and new heads are grown to the right.

n	a(n)
0	0
1	1
2	2
3	3
4	3
5	4
6	5
7	7
8	11
9	4
10	5
11	6
12	8
13	12
14	7
15	9
16	11
17	15
18	23
19	31
20	79
21	447
22	1114111
23	5
24	6
25	7
26	9
27	13
28	8
29	10
30	12
31	16
32	24
33	32
34	80
35	448
36	1114112
37	9
38	11
39	13
40	17
41	25
42	15
43	19
44	23
45	31
46	47
47	63
48	159
49	895
50	2228223
51	79
52	191
53	447
54	2303
55	53247
56	1114111
57	45079976738815
58	6065988000108893953800078394579416901568357495071628808248312306073599

[0, 1, 2, 3, 3, 4, 5, 7, 11, 4, 5, 6, 8, 12, 7, 9, 11, 15, 23, 31, 79, 447, 1114111, 5, 6, 7, 9, 13, 8, 10, 12, 16, 24, 32, 80, 448, 1114112, 9, 11, 13, 17, 25, 15, 19, 23, 31, 47, 63, 159, 895, 2228223, 79, 191, 447, 2303, 53247, 1114111, 45079976738815, 6065988000108893953800078394579416901568357495071628808248312306073599]

cp's OEIS Frontend

A372592 Irregular triangle read by rows, where the n-th row gives the number of steps in the hydra game when the initial hydra is each of the A000108(n) ordered trees with n edges (ordered by lexicographic order of their corresponding Dyck words as in A063171) and new heads are grown to the right.

Table of values

List of values