42647

Appears in sequences

• Numbers n such that the sum of the squares of the digits of n^n is a square.at n=25A171976
• Number of Dyck n-paths all of whose ascents and descents have lengths equal to 1 (mod 9).at n=38A212368
• Number of (n+2)X(2+2) 0..3 arrays with every consecutive three elements in every row and column having exactly 2 distinct values, in every diagonal 1 or 2 distinct values, in every antidiagonal 2 or 3 distinct values, and new values 0 upwards introduced in row major order.at n=2A252906
• Number of (n+2)X(3+2) 0..3 arrays with every consecutive three elements in every row and column having exactly 2 distinct values, in every diagonal 1 or 2 distinct values, in every antidiagonal 2 or 3 distinct values, and new values 0 upwards introduced in row major order.at n=1A252907
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every consecutive three elements in every row and column having exactly 2 distinct values, in every diagonal 1 or 2 distinct values, in every antidiagonal 2 or 3 distinct values, and new values 0 upwards introduced in row major order.at n=7A252910
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every consecutive three elements in every row and column having exactly 2 distinct values, in every diagonal 1 or 2 distinct values, in every antidiagonal 2 or 3 distinct values, and new values 0 upwards introduced in row major order.at n=8A252910
• Records in A361321.at n=32A361325
• Expansion of (x/(8 * (1-x))) * d/dx(theta_3(x)^4).at n=46A374535
• Consecutive internal states of the linear congruential pseudo-random number generator (321*s + 123) mod 10^5 when started at 1.at n=2A383128