spoj#NICESEQ. NICE SEQUENCES
NICE SEQUENCES
A nice sequence is a sequence of digits in which a digit d is placed at any index iff d is 0 or any divisor of d(except 1) has been placed already. First digit can be anything from 1 to 9.
Find the number of nice sequences of length n.
A nice sequence is a sequence of digits in which a digit d is placed at any index iff d is 0 or any divisor of d(except 1) has been placed already. First digit can be anything from 1 to 9.
Find the number of nice sequences of length n.
Input
Input consists of number of test cases t
Following t lines have a single line containing n as described in the problem statement.
Output
Print the number of nice sequences of length n modulo 1000000007 in a seperate line .
Example
Input:
2
1
2
Output
9
23
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Explaination :
For n=2 nice sequences are :
10,20,22,24,26,28,30,33,36,39,40,44,48 and so on !
Constraints:
1<=n<=1000