77777777

Appears in sequences

• a(n) = 7*(10^n - 1)/9.at n=8A002281
• Smallest number containing n syllables in UK English.at n=28A002810
• Smallest positive integer requiring n syllables to pronounce in American English.at n=26A045736
• Append d digits d after each digit d in decimal expansion of n.at n=7A048377
• a(0) = 1; a(n) is obtained by incrementing each digit of a(n-1) by 2.at n=18A061512
• a(10n+m) is the integer with n+m concatenations of the digit m in base 10, 0<=m<=9.at n=16A158849
• Numbers n such that the decimal digits of n are not present in k*n, k=2..9.at n=23A175637
• The smallest number that has more copies of some digit than all previous terms of the sequence put together.at n=34A179310
• Record values in A048377.at n=6A192686
• Numbers with all digits equal and from the set {1, 3, 7, 9}.at n=30A338712
• Repdigit numbers that are divisible by 7.at n=16A366596
• Happy repdigit numbers.at n=9A381046