A158786 - cp's OEIS frontend

A158786 Irregular triangle T(n, k) = A000032(n-2k+1) if (n-2k) mod 2 = 0, otherwise 25A000032(n-2k), read by rows.

n	a(n)
2	1
3	25
4	4
5	1
6	100
7	25
8	11
9	4
10	1
11	275
12	100
13	25
14	29
15	11
16	4
17	1
18	725
19	275
20	100
21	25
22	76
23	29
24	11
25	4
26	1
27	1900
28	725
29	275
30	100
31	25
32	199
33	76
34	29
35	11
36	4
37	1
38	4975
39	1900
40	725
41	275
42	100
43	25
44	521
45	199
46	76
47	29
48	11
49	4
50	1
51	13025
52	4975
53	1900
54	725
55	275
56	100
57	25
58	1364
59	521
60	199
61	76
62	29
63	11
64	4
65	1
66	34100
67	13025
68	4975
69	1900
70	725
71	275
72	100
73	25

[1, 25, 4, 1, 100, 25, 11, 4, 1, 275, 100, 25, 29, 11, 4, 1, 725, 275, 100, 25, 76, 29, 11, 4, 1, 1900, 725, 275, 100, 25, 199, 76, 29, 11, 4, 1, 4975, 1900, 725, 275, 100, 25, 521, 199, 76, 29, 11, 4, 1, 13025, 4975, 1900, 725, 275, 100, 25, 1364, 521, 199, 76, 29, 11, 4, 1, 34100, 13025, 4975, 1900, 725, 275, 100, 25]

cp's OEIS Frontend

A158786 Irregular triangle T(n, k) = A000032(n-2k+1) if (n-2k) mod 2 = 0, otherwise 25A000032(n-2k), read by rows.

Table of values

List of values

cp's OEIS Frontend

A158786 Irregular triangle T(n, k) = A000032(n-2*k+1) if (n-2*k) mod 2 = 0, otherwise 25*A000032(n-2*k), read by rows.

Table of values

List of values

A158786 Irregular triangle T(n, k) = A000032(n-2k+1) if (n-2k) mod 2 = 0, otherwise 25A000032(n-2k), read by rows.