40758
domain: N
Appears in sequences
- a(n) is the smallest number m such that for the n-digit number s=10^(n-1)+ m, 10*s+1, 10*s+3, 10*s+7 and 10*s+9 are primes.at n=27A097639
- Number of n X 4 0..1 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.at n=17A223834
- Number of involutions avoiding the pattern 1324.at n=13A230554
- Numbers k such that 7*10^k - 47 is prime.at n=26A282457