39050

Appears in sequences

• Number of 3's in n-th term of A022470.at n=43A022474
• Least of four consecutive numbers which are cubefree and not squarefree, i.e., numbers k such that {k, k+1, k+2, k+3} are in A067259.at n=19A071320
• Number of 5-ary Lyndon words of length n over Z_5 with trace 1 and subtrace 0.at n=9A074417
• Number of 5-ary Lyndon words of length n over Z_5 with trace 1 and subtrace 1.at n=9A074418
• Number of 5-ary Lyndon words of length n over Z_5 with trace 1 and subtrace 2.at n=9A074419
• Number of 5-ary Lyndon words of length n over Z_5 with trace 1 and subtrace 3.at n=9A074420
• Number of 5-ary Lyndon words of length n over Z_5 with trace 1 and subtrace 4.at n=9A074421
• Omit first term of A160458 and divide by 5.at n=7A160459
• E.g.f. satisfies: A(x) = 1/(1 - 2*x*exp(x*A(x))).at n=5A201470
• Number of nX5 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically.at n=6A207485
• Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically.at n=4A207492
• a(n) = (2*n-3)*4^(n-1) - 2*binomial(2*n, n-1).at n=4A304202
• Expansion of Product_{k>=1} 1/(1 - x^k/(1 - x^(2*k))).at n=21A309733