23716

Appears in sequences

• a(n) = (5*n + 4)^2.at n=30A016898
• a(n) = (6*n + 4)^2.at n=25A016958
• a(n) = (7*n)^2.at n=22A016982
• a(n) = (8*n + 2)^2.at n=19A017090
• a(n) = (9*n + 1)^2.at n=17A017174
• a(n) = (10*n + 4)^2.at n=15A017318
• a(n) = (11*n)^2.at n=14A017390
• a(n) = (12*n+10)^2.at n=12A017642
• Squares that remain square when the digit 9 is appended.at n=5A023114
• Cube of the lower triangular normalized partition matrix.at n=27A027517
• First diagonal of A027517.at n=6A027522
• Squares which are palindromes in base 3.at n=14A029985
• Squares with initial digit '2'.at n=26A045785
• Intrinsic 10-palindromes: n is an intrinsic k-palindrome if it is a k-digit palindrome in some base.at n=32A060947
• Denominator of 1/49 - 1/n^2.at n=15A061048
• Squares with digital root 1.at n=34A061099
• Squares that are the concatenation of three numbers, one of which is the sum of the other two.at n=6A062555
• Largest square <= sum of first n squares.at n=40A065739
• Numbers k such that the harmonic mean of the divisors of k is the square of a rational number.at n=11A074266
• Numbers k not in A065036 but such that tau(k) = omega(k)^3.at n=21A074853