A214543 - cp's OEIS frontend

A214543 Number of 5 X 5 X 5 triangular 0..n arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and every horizontal row having the same average value.

n	a(n)
1	2
2	1007
3	5360
4	35567
5	155102
6	562559
7	1786114
8	4984385
9	12779966
10	30245569
11	67041880
12	140742983
13	281169008
14	538998923
15	995176292
16	1777352885
17	3082346868
18	5202996925
19	8574228434
20	13820760479
21	21832252746
22	33858093487
23	51616202234

[2, 1007, 5360, 35567, 155102, 562559, 1786114, 4984385, 12779966, 30245569, 67041880, 140742983, 281169008, 538998923, 995176292, 1777352885, 3082346868, 5202996925, 8574228434, 13820760479, 21832252746, 33858093487, 51616202234]

cp's OEIS Frontend

A214543 Number of 5 X 5 X 5 triangular 0..n arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and every horizontal row having the same average value.

Table of values

List of values