Palindromes in Base-10 and Base-k
Return the first n integers that are palindromes in both base-10 and base-k.
Input: n = 2, k = 4
Output: [1, 5]
Explanation: 1 is '1' in base 4, and 5 is '11' in base 4. Both are perfect palindromes in decimal and base 4 simultaneously.

Question

Return the first n integers that are palindromes in both base-10 and base-k.

Input: n = 2, k = 4

Output: [1, 5]

Explanation: 1 is '1' in base 4, and 5 is '11' in base 4. Both are perfect palindromes in decimal and base 4 simultaneously.