44924

Appears in sequences

• n is equal to the number of 4s in all numbers <= n written in base 6.at n=4A014892
• Triangle of number of rises in restricted growth strings (RGS) for the set partitions of n.at n=50A056858
• a(n) = Sum {k + j*m <= n} (k + j*m), with 0 < k,j,m <= n.at n=34A106847
• Numbers k such that L(2*k + 1) is prime, where L(m) is a Lucas number.at n=39A117522
• Expansion of g.f. 1/((1-x^2+x^3+x^4-x^5)*(1-x-x^2+x^3-x^5)).at n=30A147598
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, 1), (0, 1, -1), (1, -1, 1), (1, 0, 1)}.at n=9A149044
• Number of -2..2 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having four or six distinct values for every i,j,k<=n.at n=9A211573
• Values of k such that L(k)*L(k+1)-1 is a prime, where L(k) is the k-th Lucas number (A000032).at n=28A271430