A294175 - cp's OEIS frontend

A294175 a(n) = 2^(n-1) + ((1+(-1)^n)/4)*binomial(n, n/2) - binomial(n, floor(n/2)).

n	a(n)
0	0
1	0
2	1
3	1
4	5
5	6
6	22
7	29
8	93
9	130
10	386
11	562
12	1586
13	2380
14	6476
15	9949
16	26333
17	41226
18	106762
19	169766
20	431910
21	695860
22	1744436
23	2842226
24	7036530
25	11576916
26	28354132
27	47050564
28	114159428
29	190876696
30	459312152
31	773201629
32	1846943453
33	3128164186
34	7423131482

[0, 0, 1, 1, 5, 6, 22, 29, 93, 130, 386, 562, 1586, 2380, 6476, 9949, 26333, 41226, 106762, 169766, 431910, 695860, 1744436, 2842226, 7036530, 11576916, 28354132, 47050564, 114159428, 190876696, 459312152, 773201629, 1846943453, 3128164186, 7423131482]

cp's OEIS Frontend

A294175 a(n) = 2^(n-1) + ((1+(-1)^n)/4)*binomial(n, n/2) - binomial(n, floor(n/2)).

Table of values

List of values