A187991 - cp's OEIS frontend

A187991 Number of nondecreasing arrangements of 7 numbers x(i) in -(n+5)..(n+5) with the sum of sign(x(i))*2^|x(i)| zero.

n	a(n)
1	411
2	632
3	912
4	1257
5	1673
6	2166
7	2742
8	3407
9	4167
10	5028
11	5996
12	7077
13	8277
14	9602
15	11058
16	12651
17	14387
18	16272
19	18312
20	20513
21	22881
22	25422
23	28142
24	31047
25	34143
26	37436
27	40932
28	44637
29	48557
30	52698

[411, 632, 912, 1257, 1673, 2166, 2742, 3407, 4167, 5028, 5996, 7077, 8277, 9602, 11058, 12651, 14387, 16272, 18312, 20513, 22881, 25422, 28142, 31047, 34143, 37436, 40932, 44637, 48557, 52698]

cp's OEIS Frontend

A187991 Number of nondecreasing arrangements of 7 numbers x(i) in -(n+5)..(n+5) with the sum of sign(x(i))*2^|x(i)| zero.

Table of values

List of values