186988

Appears in sequences

• Numbers with multiplicative persistence value 7.at n=26A046516
• a(n) = ((2n+1)*3^n - 1)/2.at n=8A079272
• Number of unrooted loopless n-edge maps in the plane (planar with a distinguished outside face).at n=9A103941
• Partial sums of A069996.at n=7A153703
• Composite numbers whose multiplicative persistence is 7.at n=25A199997
• 0-additive sequence: a(n) is the smallest number larger than a(n-1) that is not the sum of any subset of earlier terms, starting with initial values {2, 5}.at n=21A244749
• Triangle read by rows: T(n,k) is the coefficient A_k in the transformation of 1 + x + x^2 + ... + x^n to the polynomial A_k*(x-3k)^k for 0 <= k <= n.at n=37A248978
• Number of length-n binary strings s whose longest repeated suffix appears exactly twice in s.at n=17A284462