23289
domain: N
Appears in sequences
- Numbers k such that 71*2^k+1 is prime.at n=23A032385
- m for which p(m) is the least prime dividing #p(n) + 1, i.e., primorial n-th prime augmented by 1 (A005234).at n=22A068488
- 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, 0, 0), (0, 0, -1), (1, -1, 0), (1, 1, 0)}.at n=9A149175
- G.f. satisfies: A(x) = (1 + x*(1-x)*A(x)) * (1 + x^2*A(x)).at n=20A216604
- 29-gonal numbers: a(n) = n*(27*n-25)/2.at n=42A255187
- Terms of A005132 corresponding to the values in A330788.at n=21A330789
- Number of ASCII letter 'A' bytes that when compressed with zlib generate a new record longest compressed byte stream.at n=38A375585