29397

Appears in sequences

• Numerators of continued fraction convergents to sqrt(829).at n=9A042600
• Triangle T(n,k), 0 <= k <= n, read by rows given by: T(0,0)=1, T(n,k)=0 if k < 0 or if k > n, T(n,0) = 3*T(n-1,0) + T(n-1,1), T(n,k) = T(n-1,k-1) + T(n-1,k) + T(n-1,k+1) for k >= 1.at n=46A126954
• Smallest number whose decimal expansion is a concatenation of two primes in n different ways.at n=3A213072
• Numbers such that, in base 10, all their proper prefixes and suffixes represent primes.at n=39A254751
• Composite numbers with only prime proper prefixes and suffixes in base 10.at n=29A254753
• Numbers n such that the decimal equivalent of the binary reflected Gray code representation of n is a palindromic prime.at n=47A281382
• Numbers m such that sigma(m) = tau(m)! where sigma(k) = A000203(k) and tau(k) = A000005(k).at n=15A351866
• a(n) is the number of 5 element sets of distinct integer sided rectangles that fill an n X n square.at n=16A387241