80192

Appears in sequences

• Numbers k such that k divides the (right) concatenation of all numbers <= k written in base 13 (most significant digit on right, least significant zeros not written).at n=18A061942
• Triangle T(m,k) read by rows, where T(m,k) is the number of ways in which 1<=k<=m positions can be picked in an m X m square grid such that the picked positions have a point symmetry or a line symmetry.at n=26A292153
• Number of cyclically 3-connected cubic planar graphs containing 2n nodes.at n=4A319427
• G.f. = Phi^5*F, where Phi = g.f. for A028930, F = g.f. for A028959.at n=18A328532