50883

Appears in sequences

• Number of points of norm <= n in cubic lattice.at n=23A000605
• Base-7 digits are, in order, the first n terms of the periodic sequence with initial period 3,0,1,2.at n=5A037761
• Numbers whose base-15 representation has exactly 5 runs.at n=16A043672
• a(n) = sigma_1(1) + sigma_2(2) + sigma_3(3) + ... + sigma_n-1(n-1) + sigma_n(n).at n=5A245466
• L.g.f.: Sum_{n=-oo..+oo} (x - x^(2*n-1))^(2*n-1) / (2*n-1).at n=51A293129
• Number of ways to write n as an ordered sum of 7 primes.at n=39A340963