A386829 - cp's OEIS frontend

A386829 a(n) = Sum_{k=0..n} 3^k * 2^(n-k) * binomial(2n+1,k) binomial(2*n-k,n-k).

n	a(n)
0	1
1	13
2	204
3	3457
4	61006
5	1103598
6	20299434
7	377871297
8	7097430726
9	134243202358
10	2553356761264
11	48788507855562
12	935791802540596
13	18007015501848568
14	347459946354962694
15	6720599552926105377
16	130263082422599127366
17	2529516572366126192478

[1, 13, 204, 3457, 61006, 1103598, 20299434, 377871297, 7097430726, 134243202358, 2553356761264, 48788507855562, 935791802540596, 18007015501848568, 347459946354962694, 6720599552926105377, 130263082422599127366, 2529516572366126192478]

cp's OEIS Frontend

A386829 a(n) = Sum_{k=0..n} 3^k * 2^(n-k) * binomial(2n+1,k) binomial(2*n-k,n-k).

Table of values

List of values

cp's OEIS Frontend

A386829 a(n) = Sum_{k=0..n} 3^k * 2^(n-k) * binomial(2*n+1,k) * binomial(2*n-k,n-k).

Table of values

List of values

A386829 a(n) = Sum_{k=0..n} 3^k * 2^(n-k) * binomial(2n+1,k) binomial(2*n-k,n-k).