51325

Appears in sequences

• Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 2X4 tee 1,1 1,2 1,3 2,3 1,4 in any orientation.at n=14A146042
• Numbers k that divide 5^k + 3^k + 2^k.at n=15A220170
• a(1)=2; for n > 1, a(n) is the square root of the smallest square with a(n-1) as a prefix in base 10.at n=25A308055
• Number of sets of nonempty words with a total of n letters over senary alphabet such that within each word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.at n=8A340413
• a(n) = Sum_{k=0..n} Stirling2(n+k,k).at n=5A392734