31877

Appears in sequences

• Functional determinants; partitions of partitions; Euler transform applied twice to all 1's sequence.at n=16A001970
• Composite numbers n such that k! == 1 (mod n) for some k > 2.at n=28A049048
• a(n) = smallest number k such that 2^n + k is a palindrome.at n=30A083463
• Numbers n such that the coefficient of x^n in (x^2-x-1)^n is prime.at n=11A112874
• Last term where no prime sums occur in A161190 in a 4-diagonal set of 24 terms.at n=16A161193
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of the symmetric matrix A202670 based on A000290 (the squares); by antidiagonals.at n=22A202671
• Numbers of the form p*q, p and q prime with q=2p-3.at n=19A226755
• Number of primes whose binary representation has length n and which translates ('inter-base translation') to ternary as a prime.at n=22A243159