## Comfortable distance

### Problem 364

Published on 24 December 2011 at 01:00 pm [Server Time]

There are `N` seats in a row. `N` people come after each other to fill the seats according to the following rules:

- If there is any seat whose adjacent seat(s) are not occupied take such a seat.
- If there is no such seat and there is any seat for which only one adjacent seat is occupied take such a seat.
- Otherwise take one of the remaining available seats.

`N`) be the number of possibilities that

`N`seats are occupied by

`N`people with the given rules.

The following figure shows T(4)=8.

We can verify that T(10) = 61632 and T(1 000) mod 100 000 007 = 47255094.

Find T(1 000 000) mod 100 000 007.

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