38250

Appears in sequences

• a(n) = n*(n + 1)*(n^2 - 3*n + 6)/8.at n=23A004255
• q-Fibonacci numbers for q=2, scale a(n-1).at n=6A015473
• Numbers whose base-2 representation has exactly 14 runs.at n=24A043581
• Duplicate of A004255.at n=24A101357
• a(n) = denominator of the continued fraction which has the positive divisors of n as its terms. The terms are written in order from 1 for the integer part, to n for the final term of the continued fraction.at n=31A127612
• G.f.: exp( Sum_{n>=1} A001511(n)*2^A001511(n)*x^n/n ) where A001511(n) equals the 2-adic valuation of 2n.at n=23A183036
• Number of (7+1) X (n+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.at n=21A250661
• First Sylvester wave. Triangle read by rows: Coefficients of the numerator of the polynomial part of the partition function restricted to partitions of the integer x with parts in (1,2,...,n). (The denominators are A375251.)at n=11A375252
• Square array A(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of Product_{j=0..k} (1 + j*x)/(1 - j*x).at n=49A383900