Here's a table of some basic Laplace transforms.

            function            Laplace
1 1/s
eat 1/ (s-a)
tn n! / s (n + 1)
tp, p >-1 Γ(p + 1) / s (p + 1)
sin at a / (s 2 + a 2 )
cos at s / (s 2 + a 2 )
sinh at a / (s 2 - a 2 )
cosh at s / (s 2 - a 2 )
e at sin bt b / [ (s-a) 2 + b 2 ]
e at cos bt (s - a) / [ (s-a) 2 + b 2 ]
tneat n! / (s - a) (n + 1)
uc(t) e -cs / s
uc(t)f(t-c) e-csF(s)
ect f(t) F(s - c)
f(ct) 1/c F(s/c)
0tf(t-τ)g(τ)dτ F(s)*G(s)
δ(t - c) e-cs
f(n)(t) snF(s)-sn-1f(0)-...-f(n - 1)(0)
(-t)nf(t) F(n)(s)

For notation clarity, I used uc(t) in this table to denote the unit step function, or Heaviside function (this is often H(t-c) in some differential equations books).