A307318 - cp's OEIS frontend

A307318 a(n) = Sum_{i=0..n} Sum_{j=0..n} Sum_{k=0..n} (-1)^(i+j+k) * (i+j+k)!/(i!j!k!).

n	a(n)
0	1
1	-2
2	37
3	-692
4	14371
5	-315002
6	7156969
7	-166785320
8	3960790687
9	-95442311582
10	2326713829837
11	-57260397539204
12	1420295354815351
13	-35463581316556850
14	890530353765972817
15	-22472131364683145552
16	569507678494598796631
17	-14487492070374441746150

[1, -2, 37, -692, 14371, -315002, 7156969, -166785320, 3960790687, -95442311582, 2326713829837, -57260397539204, 1420295354815351, -35463581316556850, 890530353765972817, -22472131364683145552, 569507678494598796631, -14487492070374441746150]

cp's OEIS Frontend

A307318 a(n) = Sum_{i=0..n} Sum_{j=0..n} Sum_{k=0..n} (-1)^(i+j+k) * (i+j+k)!/(i!j!k!).

Table of values

List of values

cp's OEIS Frontend

A307318 a(n) = Sum_{i=0..n} Sum_{j=0..n} Sum_{k=0..n} (-1)^(i+j+k) * (i+j+k)!/(i!*j!*k!).

Table of values

List of values

A307318 a(n) = Sum_{i=0..n} Sum_{j=0..n} Sum_{k=0..n} (-1)^(i+j+k) * (i+j+k)!/(i!j!k!).