A109057 - cp's OEIS frontend

A109057 To compute a(n) we first write down 5^n 1's in a row. Each row takes the rightmost 5th part of the previous row and each element in it equals sum of the elements of the previous row starting with the first of the rightmost 5th part. The single element in the last row is a(n).

n	a(n)
0	1
1	1
2	5
3	115
4	12885
5	7173370
6	19940684251
7	277078842941900
8	19249144351745111125
9	6686277384080730564862875
10	11612516024884420913314995604000
11	100841213012622614260440382077516990500
12	4378443591626306255827149380635713364079323075

[1, 1, 5, 115, 12885, 7173370, 19940684251, 277078842941900, 19249144351745111125, 6686277384080730564862875, 11612516024884420913314995604000, 100841213012622614260440382077516990500, 4378443591626306255827149380635713364079323075]

cp's OEIS Frontend

A109057 To compute a(n) we first write down 5^n 1's in a row. Each row takes the rightmost 5th part of the previous row and each element in it equals sum of the elements of the previous row starting with the first of the rightmost 5th part. The single element in the last row is a(n).

Table of values

List of values