28871

Properties

Appears in sequences

• Base-8 palindromes that start with 7.at n=21A043027
• Primes that are each the sum of two, three, and four consecutive composite numbers.at n=34A060339
• Primes by index in A001945.at n=56A104499
• Number of primitive Pythagorean-like triples a^2+b^2=c^2+k for k=-3 with 0<c<=10^n.at n=4A121085
• Number of n X 2 binary arrays with no element equal to the sum mod 3 of its horizontal and vertical neighbors.at n=14A183364
• Arises in the maximum number of C5's in a triangle-free graph.at n=39A185721
• Primes of the form 5n^2 - 9.at n=13A201790
• Primes of the form (p+q)^2 + pq, where p and q are consecutive primes.at n=12A252231
• Number of maximal cliques in the n X n queen graph.at n=33A288947
• Inert rational primes in the intersection of all Q(sqrt(-d)) where d is a Heegner number.at n=6A309024
• a(n) is the least number whose fourth power is an n-digit fourth power which has the maximum sum of digits (A373914(n)).at n=17A380111
• a(n) is the largest number whose fourth power is an n-digit which has the maximum sum of digits (A373914(n)).at n=17A380797
• Prime numbersat n=3144