100024

Appears in sequences

• Positive numbers k such that k and 4*k are anagrams in base 8 (written in base 8).at n=25A023075
• a(n) = A239460(n) / n^2.at n=23A239463
• Numbers <= 10^6 with valid Luhn mod 10 check digit, sorted lexicographically.at n=3A249854
• "Inside numbers". Pick a term "t" and one of its digits "d". Now jump to the right over d digits if "d" is odd, and to the left over d digits if "d" is even. Whatever the "d" you choose, you will stay on "t".at n=42A284515
• Number of times the digit 4 appears in the first 10^n decimal digits of sqrt(2), sometimes called Pythagoras's constant, counting after the decimal point.at n=5A322645