38766

Appears in sequences

• When expressed in base 3 and then interpreted in base 7, is a multiple of the original number.at n=35A062884
• Row sums of triangle A067979; also of triangle A067990.at n=11A067989
• Wiener index of the Moebius ladder M(n).at n=41A180857
• Number of set partitions of [n] such that for each block b the smallest integer interval containing b has at most four elements and for at least one block c the smallest integer interval containing c has exactly four elements.at n=9A320554
• a(n) = exp(-n) * Sum_{k>=0} (k - n)^n * n^k / k!.at n=7A337057
• G.f. A(x) satisfies: -x^2 = Sum_{n=-oo..oo} (-1)^n * x^(n*(n+1)/2) * A(x)^(n*(n-1)/2).at n=11A354647