A:What about you?
B:Me,too.
C:No problem.
1×2×3×4+1=52
2×3×4×5+1=112
3×4×5×6+1=192
4×5×6×7+1=292
n(n+1)(n+2)(n+3)+1=____(n为整数)
下列叙述正确的是