200002

Appears in sequences

• Numbers whose square is a palindrome.at n=35A002778
• Numbers k such that k^2 is a palindrome with an odd number of digits.at n=34A028816
• Palindromes whose digits do not appear in previous term.at n=45A030285
• Lexicographically earliest strictly increasing base 5 autovarious sequence: a(n) = number of distinct a(k) mod 5^n (written in base 5).at n=25A038114
• Numbers whose square contains the same digit more than 2/3 of the time and does not end in 0.at n=12A039820
• Numbers k such that k^3 has only even digits.at n=31A052004
• Palindromes whose square is a palindrome; also palindromes whose sum of squares of digits is less than 10.at n=26A057135
• Numbers k such that k^2 contains only digits {0,4,8}, not ending with zero.at n=11A058441
• Palindromes whose digit sum is 4.at n=11A065983
• Palindromes n such that the n*m is also a palindrome, where m is the next palindrome after n.at n=26A083159
• n, n^2 and n^3 all use only even digits.at n=13A085586
• Numbers n such that there are (presumably) nine palindromes in the Reverse and Add! trajectory of n.at n=25A090070
• Palindromes with either no internal digits or all internal digits are 0.at n=47A109882
• Palindromes m such that reverse of m^2 is also a square.at n=28A128921
• Numbers k such that k and k^2 use only the digits 0, 2, 3, 4 and 8.at n=40A136885
• Numbers k such that k and k^2 use only the digits 0, 2, 4, 6 and 8.at n=45A136904
• Numbers k such that k and k^2 use only the digits 0, 2, 4, 7 and 8.at n=51A136906
• Numbers k such that k and k^2 use only the digits 0, 2, 4 and 8.at n=23A136908
• Numbers k such that k and k^2 use only the digits 0, 2, 4, 8 and 9.at n=47A136909
• Numbers whose decimal expansion contains only 0's and 2's.at n=33A169965