63138

Appears in sequences

• Length of n-th term in Look and Say sequences A005150 and A007651.at n=39A005341
• 24 'Reverse and Add' steps are needed to reach a palindrome.at n=27A065318
• a(n) = 121*n^2 - 38*n + 3.at n=22A157443
• Number of nX2 0..2 arrays with no element equal to more than one of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.at n=6A281247
• T(n,k)=Number of nXk 0..2 arrays with no element equal to more than one of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.at n=29A281251
• T(n,k)=Number of nXk 0..2 arrays with no element equal to more than one of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.at n=34A281251