242424

Appears in sequences

• Self-locating strings within Pi: numbers n such that the string n is at position n in the decimal digits of Pi, where 3 is the first digit.at n=1A057679
• Numbers that are divisible by all of their 1 and 2 digit substrings.at n=42A063527
• Triplets: base 10 representation is the juxtaposition of three identical strings.at n=23A074842
• a(1) = 999, a(n) is the number obtained by concatenating product of neighboring digits of the previous term.at n=4A110401
• Non-palindromes in A110751; that is, non-palindromic numbers n such that n and R(n) have the same prime divisors, where R(n) = digit reversal of n.at n=24A110819
• "Stapled" intervals are defined in A090318. Call a stapled interval "maximal" if it is not a proper subinterval of any other stapled interval. Sequence gives starting points of maximal stapled intervals.at n=22A130170
• "Stapled" intervals are defined in A090318. Call a stapled interval "minimal" if it does not contain any proper stapled subinterval. Sequence gives starting points of minimal stapled intervals.at n=22A130171
• Numbers k such that the string k is found at position k-3 in the decimal digits of Pi.at n=3A153221
• Starting points of stapled intervals of length 17.at n=16A194585
• Numbers n such that the integers formed by all cyclic permutations of the decimal digits of n have the same prime divisors.at n=51A244514
• Numbers n such that 2*n and n^3 have the same digit sum.at n=24A266315
• Number of finite edges in the graph formed when every pair of vertices of a row of n adjacent congruent rectangles are joined by an infinite line.at n=25A347751
• Self-locating strings within Pi: numbers n such that the reverse string n starts at position n in the decimal digits of Pi, where leading 3 is omitted.at n=3A366831