A118181 - cp's OEIS frontend

A118181 Row sums of triangle A118180: a(n) = Sum_{k=0..n} (3^k)^(n-k) for n>=0.

n	a(n)
0	1
1	2
2	5
3	20
4	137
5	1622
6	33293
7	1182440
8	72811793
9	7757988842
10	1433154521621
11	458101483131260
12	253879024041595289
13	243453910296759945662
14	404765167247068325944349
15	1164432505878183620543030480

[1, 2, 5, 20, 137, 1622, 33293, 1182440, 72811793, 7757988842, 1433154521621, 458101483131260, 253879024041595289, 243453910296759945662, 404765167247068325944349, 1164432505878183620543030480]

cp's OEIS Frontend

A118181 Row sums of triangle A118180: a(n) = Sum_{k=0..n} (3^k)^(n-k) for n>=0.

Table of values

List of values