A026524 - cp's OEIS frontend

A026524 a(n) = T(n, n-4), T given by A026519. Also a(n) = number of integer strings s(0), ..., s(n), counted by T, such that s(n) = 4.

n	a(n)
4	1
5	3
6	9
7	28
8	65
9	201
10	430
11	1316
12	2721
13	8259
14	16793
15	50680
16	102102
17	306958
18	615024
19	1844304
20	3682545
21	11024331
22	21963161
23	65675764
24	130648089
25	390374193
26	775797750
27	2316881892
28	4601346295
29	13737041045
30	27270124455

[1, 3, 9, 28, 65, 201, 430, 1316, 2721, 8259, 16793, 50680, 102102, 306958, 615024, 1844304, 3682545, 11024331, 21963161, 65675764, 130648089, 390374193, 775797750, 2316881892, 4601346295, 13737041045, 27270124455]

cp's OEIS Frontend

A026524 a(n) = T(n, n-4), T given by A026519. Also a(n) = number of integer strings s(0), ..., s(n), counted by T, such that s(n) = 4.

Table of values

List of values