141457

Appears in sequences

• a(n) = 2nd elementary symmetric function of C(n,0), C(n,1), ..., C(n,[ n/2 ]).at n=8A025136
• Quasi-Carmichael numbers to base 7: squarefree composites n such that (n,2*3*5) = 1 and prime p|n ==> p-7|n-7.at n=17A029556
• Sums of rows of A077529.at n=16A077531
• Least number of the form x^2 + y^4 in exactly n ways where x and y are nonzero integers.at n=3A274015
• Length of n-th iterate of the mapping 00->0010, 01->100, 10->011 in A289165.at n=28A289177