30693
domain: N
Appears in sequences
- Numbers whose square is a palindrome.at n=30A002778
- Nonpalindromic and "non-core" numbers that when squared give palindrome with odd number of digits.at n=7A016106
- Numbers k such that k^2 is a palindrome with an odd number of digits.at n=29A028816
- Numbers k such that k^2 is a palindromic square of sporadic type.at n=8A059744
- 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=27A129914
- Reversals of Lucas numbers (sorted).at n=20A140463
- 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, 1), (0, 1, -1), (0, 1, 1), (1, 0, 1), (1, 1, 1)}.at n=7A151228
- Numbers that are not palindromes, but whose squares are palindromes.at n=8A251673
- Lucas numbers written backwards.at n=22A267551
- Number of broken 1-diamond partitions of n.at n=17A328539
- Number of non Wilf and non conjugate Wilf integer partitions of n.at n=40A383530