439229

Appears in sequences

• Convolution of natural numbers n >= 1 with Lucas numbers L(k) for k >= -2.at n=25A033818
• Numbers k such that k and k^2 use only the digits 1, 2, 3, 4 and 9.at n=25A136972
• a(n) = n + 2*cos((n*Pi)/3) + Lucas(n).at n=26A297661
• Number of chordless cycles in the n-web graph.at n=24A297665