A174381 - cp's OEIS frontend

A174381 Triangle for denominators of half extended Rydberg-Ritz spectrum of the hydrogenic spectra. a(n) is an antidiagonal writing of array in A171522 without first column.

n	a(n)
0	0
1	0
2	4
3	0
4	9
5	36
6	0
7	16
8	16
9	144
10	0
11	25
12	100
13	225
14	400
15	0
16	36
17	9
18	12
19	144
20	900
21	0
22	49
23	196
24	441
25	784
26	1225
27	1764
28	0
29	64
30	64
31	576
32	64
33	1600
34	576
35	3136
36	0
37	81
38	324
39	81
40	1296
41	2025
42	324
43	3969
44	5184
45	0
46	100
47	25
48	900
49	400
50	100
51	225
52	4900
53	1600
54	8100
55	0
56	121
57	484
58	1089

[0, 0, 4, 0, 9, 36, 0, 16, 16, 144, 0, 25, 100, 225, 400, 0, 36, 9, 12, 144, 900, 0, 49, 196, 441, 784, 1225, 1764, 0, 64, 64, 576, 64, 1600, 576, 3136, 0, 81, 324, 81, 1296, 2025, 324, 3969, 5184, 0, 100, 25, 900, 400, 100, 225, 4900, 1600, 8100, 0, 121, 484, 1089]

cp's OEIS Frontend

A174381 Triangle for denominators of half extended Rydberg-Ritz spectrum of the hydrogenic spectra. a(n) is an antidiagonal writing of array in A171522 without first column.

Table of values

List of values