1121111

Appears in sequences

• q-Fibonacci numbers for q=10, scaling a(n-2).at n=6A015468
• Leftmost 1 is converted to a 2, which then propagates one step at a time until it is rightmost; then it changes to a pair of 1's and the process repeats.at n=31A071762
• Least early bird number of order n.at n=17A133652
• Numbers with digital product = 2.at n=25A199986
• Composite numbers whose product of digits is 2.at n=18A201015
• Underline all even terms; concatenations of underlined terms and of non-underlined terms both equal the concatenation of the entire sequence. This is the lexicographically earliest such sequence without duplicate terms and with an even digit among the first two terms.at n=35A307312