280351

Properties

Appears in sequences

• Number of those nonnegative integer solutions of the congruence x_1+2x_2+...+(n-1)x_{n-1} = 0 (mod n) which are indecomposable, that is, are not nonnegative linear combinations of other nonnegative integer solutions.at n=30A096337
• Number of 0..n arrays x(0..4) of 5 elements without any two consecutive increases or two consecutive decreases.at n=13A200840
• Primes of the form: concatenation n with n-th composite integer.at n=18A246801
• Prime numbersat n=24463