197802

Appears in sequences

• Let x(n) = 123...n, y(n) = n...321; a(n) = y(n) concatenated with x(n) - x(n) concatenated with y(n).at n=2A083827
• Numbers k for which the quotient q(k)=(k+rev(k))/abs(k-rev(k)) is an integer.at n=32A087993
• Triangle read by rows in which row n gives coefficients of polynomial R_n(y) that satisfies R_n(1/3) = 9^n, where R_n(y) forms the initial (n+1) terms of g.f. A097191(y)^(n+1).at n=39A097190
• Numbers n with the property that cyclically right-shifting by 2 positions divides n by 9 (leading 0's omitted).at n=0A213817
• Coefficients of polynomials related to ordered set partitions. Triangle read by rows, T_{m}(n, k) for m = 3 and 0 <= k <= n.at n=12A326587
• Numbers k such that R(k)/k is of the form (m + 1)/m, where R(k) is the digital reversal of k.at n=13A376259