73737

Appears in sequences

• Numbers that are palindromic in bases 2 and 10.at n=18A007632
• Final terms of rows of A077529.at n=26A077530
• Numbers such that RevBinary() = RevDecimal(), where RevDecimal(n) is the decimal reversal of n (A004086) and RevBinary(n) is the binary reversal of n (A030101).at n=25A081434
• n-th largest palindrome whose digit sum is n.at n=26A082265
• Numbers k such that the k-th triangular number contains each of the 10 decimal digits exactly once.at n=15A115939
• Truncated dodecahedron, and truncated icosahedron with faces of centered polygons.at n=13A193248
• a(n) = 4*n^3 + 5*n^2 + 2*n + 1.at n=26A204674
• Numbers such that all the substrings of length <= 2 are primes.at n=19A211681
• Consider a decimal number of k>=2 digits x = d_(k)*10^(k-1) + d_(k-1)*10^(k-2) + … + d_(2)*10 + d_(1) and the transform T(x)-> (d_(k)+d_(k-1) mod 10)*10^(k-1) + (d_(k-1)+d_(k-2) mod 10)*10^(k-2) + … + (d_(2)+d_(1) mod 10)*10 + (d_(1)+d(k) mod 10). Sequence lists the numbers x such that T(x)=0.at n=33A243994
• Number of length n+3 0..2 arrays with some disjoint pairs in every consecutive four terms having the same sum.at n=23A247527
• Numbers n not divisible by 2 such that n^2 written in base 4 has no digit > 1.at n=12A257284
• E.g.f. S(x) satisfies: S(x) = Integral (1 + S(x)^2)^(9/2) dx.at n=3A281443
• List of numbers k whose consecutive digits increase or decrease by d-1, where d is the number of digits in k.at n=97A292439
• a(n) = 36*2^n + 9.at n=11A305154