225522

Appears in sequences

• Lexicographically earliest sequence of increasing numbers whose digits satisfy the "Fractal Jump" rule using only the digits 2 and 5: keep the first digit "d" of the sequence, then jump over the next "d" digits and keep the digit "e" on which you have landed. Jump now over the next "e" digits and keep the digit "f" on which you have landed, etc. The succession "def..." of kept digits is the sequence itself.at n=29A105647
• Palindromes whose squares belong to A066531.at n=8A117281
• Six-digit exclusionary cubes: 6-digit numbers whose cubes comprise digits none of which appears in the number itself.at n=16A195363
• Numbers whose square is the product of a number and its reverse.at n=26A207373
• Number of 3Xn 0..1 arrays with every element equal to 0, 1, 2 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=14A302416
• Palindromes which are a concatenation of three palindromes, each of which has at least 2 digits.at n=15A368020
• Palindromes with exactly 5 distinct prime divisors.at n=26A373465