37249

Appears in sequences

• Number of ways to add n ordinals.at n=12A005348
• a(n) = (5*n + 3)^2.at n=38A016886
• a(n) = (6*n + 1)^2.at n=32A016922
• a(n) = (7*n + 4)^2.at n=27A017030
• a(n) = (8*n + 1)^2.at n=24A017078
• a(n) = (9*n + 4)^2.at n=21A017210
• a(n) = (10*n + 3)^2.at n=19A017306
• a(n) = (11*n + 6)^2.at n=17A017462
• a(n) = (12*n + 1)^2.at n=16A017534
• a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (odd natural numbers), t = (primes).at n=37A025117
• Numbers k such that 33*2^k+1 is prime.at n=29A032366
• Squares of lucky numbers.at n=37A032598
• Squares with initial digit '3'.at n=31A045786
• Square elements of A046949.at n=9A046950
• sigma(n)-n is a perfect square associated with A049226.at n=14A049228
• sigma(n)-n is a perfect square associated with A049226.at n=21A049228
• Squares of primes lacking the digit zero in their decimal expansion.at n=34A052043
• Powers of a prime lucky number (A031157) but excluding lucky numbers (A000959).at n=17A057609
• Composite numbers k such that the sum of the divisors of k^2 is a prime.at n=24A065405
• Squares which when reversed are primes (ignore leading zeros).at n=20A068989