What do you mean by "401k statement"? Did you cash it out? If you did then you will be receiving a 1099R from the financial institution that held the 401k account--it will come sometime in January/early February. If you did not cash it out there is nothing you need to enter about it on your tax return.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**