18950

Appears in sequences

• Number of partitions of n with equal nonzero number of parts congruent to each of 0 and 1 (mod 5).at n=52A035562
• Numbers k such that k | 10^k + 9^k + 8^k + 7^k + 6^k + 5^k + 4^k + 3^k.at n=15A057283
• This is to A139025 as A139025 to A014688, see A139025 for details.at n=30A139026
• Number of n X 3 0..1 arrays with rows and columns lexicographically nondecreasing and every element equal to at least one horizontal or vertical neighbor.at n=12A201348
• Expansion of (f(-x)^3 / f(-x^2))^6 - 64 * x * (f(-x^2)^3 / f(-x))^6 in powers of x where f() is a Ramanujan theta function.at n=15A258739
• Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic nonresidues mod p that are < p/2.at n=28A282724
• Number of n X n 0..1 arrays with every element unequal to 0, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.at n=6A304946
• Number of n X 7 0..1 arrays with every element unequal to 0, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.at n=6A304951
• Number of n-digit numbers that have exactly 5 divisors.at n=22A379568