25283

Appears in sequences

• a(n) is the smallest composite number c such that A002110(n) + c is prime.at n=30A038771
• Number of games of Gothic chess after n plies plus number of games that terminate (i.e., mate) in fewer than n plies.at n=3A114037
• Brilliant numbers (A078972) whose digit reversal is the product of 2 palindromes greater than 1.at n=28A115681
• Number of partitions of n where the difference between consecutive parts is at most 5.at n=41A238865
• Semiprimes whose prime factors are of equal binary length and which differ from each other in exactly two bit positions.at n=51A261074
• Numbers such that the sum of the reverse of their aliquot parts is equal to the reverse of the sum of their aliquot parts.at n=27A278948
• Numbers k such that the sums (with multiplicity) of prime factors of k and k+1 are both squares.at n=26A359445