63917

Appears in sequences

• a(n) = a(1) + a(2) + ... + a(n-1) + a(m) for n >= 4, where m = n - 1 - 2^p and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1, a(2) = 3, and a(3) = 2.at n=16A049970
• a(n) = Sum_{i=1..n} i*(n-i)^i.at n=9A062807
• Floor((x^n - (1-x)^n)/2 +.5) where x = (sqrt(4)+1)/2 = 3/2.at n=28A136423
• a(n) = 76*n^2 + 1.at n=29A158767
• Number of ordered septuples of distinct pairwise coprime positive integers with largest element n.at n=44A186978
• Triangle read by rows, Bell transform of Bell numbers.at n=48A264428