A200180 - cp's OEIS frontend

A200180 Number of -7..7 arrays x(0..n-1) of n elements with zero sum and no two consecutive declines, no adjacent equal elements, and no element more than one greater than the previous (random base sawtooth pattern).

n	a(n)
1	1
2	7
3	9
4	31
5	53
6	141
7	380
8	1010
9	2152
10	5014
11	14018
12	35542
13	78385
14	188789
15	503051
16	1241939
17	2859687
18	6957672
19	17863397
20	43991846
21	103888178
22	253531752
23	640390692
24	1575397895
25	3777406958
26	9259136398
27	23167497450
28	57008137128
29	138220165963

[1, 7, 9, 31, 53, 141, 380, 1010, 2152, 5014, 14018, 35542, 78385, 188789, 503051, 1241939, 2859687, 6957672, 17863397, 43991846, 103888178, 253531752, 640390692, 1575397895, 3777406958, 9259136398, 23167497450, 57008137128, 138220165963]

cp's OEIS Frontend

A200180 Number of -7..7 arrays x(0..n-1) of n elements with zero sum and no two consecutive declines, no adjacent equal elements, and no element more than one greater than the previous (random base sawtooth pattern).

Table of values

List of values