22865

Appears in sequences

• Numbers whose square is a palindrome.at n=28A002778
• Nonpalindromic and "non-core" numbers that when squared give palindrome with odd number of digits.at n=5A016106
• a(n) = [ a(n-1)/a(1) + a(n-3)/a(3) + a(n-5)/a(5) + ... ], for n >= 3.at n=26A022859
• a(n) = (n+1)*(5*n^2+4*n+1).at n=16A027849
• Numbers k such that k^2 is a palindrome with an odd number of digits.at n=27A028816
• Numbers k such that k^2 is a palindromic square of sporadic type.at n=6A059744
• Irregular square reversible numbers. Numbers which when squared and written backwards give a square again, but don't satisfy reverse(n^2) = reverse(n)^2.at n=22A129914
• Numbers k such that k and k^2 use only the digits 0, 2, 5, 6 and 8.at n=25A136913
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, -1), (0, -1, 0), (1, 0, 1), (1, 1, 0)}.at n=8A150341
• Number of n X 4 array permutations with each element making zero or one knight moves.at n=3A189147
• T(n,k)=Number of nXk array permutations with each element making zero or one knight moves.at n=24A189150
• Number of -3..3 circular arrays x(0..n+1) of n+2 elements with zero sums of x(i) and x(i)*x((i+1) mod (n+2)).at n=5A202001
• T(n,k)=Number of -k..k circular arrays x(0..n+1) of n+2 elements with zero sums of x(i) and x(i)*x((i+1) mod (n+2)).at n=33A202006
• Number of -n..n circular arrays x(0..7) of 8 elements with zero sums of x(i) and x(i)*x((i+1) mod 8).at n=2A202010
• Triangle read by rows: T(n,k) is the number of weighted lattice paths B(n) having k uhd strings.at n=32A247290
• Number of weighted lattice paths B(n) having no uhd strings.at n=14A247291
• Numbers that are not palindromes, but whose squares are palindromes.at n=6A251673
• Least positive integer m such that both m and m*n belong to the set {k>0: prime(k)+2, prime(k)+6, prime(k)+8 are all prime}.at n=5A261541
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 7", based on the 5-celled von Neumann neighborhood.at n=31A270012
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 7", based on the 5-celled von Neumann neighborhood.at n=32A270012