A274570 - cp's OEIS frontend

A274570 Triangle, read by rows, that transforms diagonals in the array A274390 of coefficients in successive iterations of Euler's tree function (A000169).

n	a(n)
0	1
1	1
2	1
3	7
4	2
5	1
6	127
7	20
8	3
9	1
10	4377
11	470
12	39
13	4
14	1
15	245481
16	19912
17	1125
18	64
19	5
20	1
21	20391523
22	1326382
23	56505
24	2188
25	95
26	6
27	1
28	2354116899
29	127677580
30	4354923
31	127056
32	3755
33	132
34	7
35	1
36	360734454993
37	16767030632
38	476265591
39	11117244
40	247465
41	5922
42	175
43	8
44	1
45	70865037282673
46	2880746218304
47	70056231213
48	1360983976
49	24228925
50	436632
51	8785
52	224
53	9
54	1
55	17367953099244051
56	627213971899610
57	13329387478113
58	221585119536
59	3281909155
60	47290506
61	716457
62	12440
63	279
64	10
65	1

[1, 1, 1, 7, 2, 1, 127, 20, 3, 1, 4377, 470, 39, 4, 1, 245481, 19912, 1125, 64, 5, 1, 20391523, 1326382, 56505, 2188, 95, 6, 1, 2354116899, 127677580, 4354923, 127056, 3755, 132, 7, 1, 360734454993, 16767030632, 476265591, 11117244, 247465, 5922, 175, 8, 1, 70865037282673, 2880746218304, 70056231213, 1360983976, 24228925, 436632, 8785, 224, 9, 1, 17367953099244051, 627213971899610, 13329387478113, 221585119536, 3281909155, 47290506, 716457, 12440, 279, 10, 1]

cp's OEIS Frontend

A274570 Triangle, read by rows, that transforms diagonals in the array A274390 of coefficients in successive iterations of Euler's tree function (A000169).

Table of values

List of values