26228

Appears in sequences

• (prime(n-1) + 1)*(prime(n+1) - 1).at n=36A087105
• Number of partitions of n such that if k is the largest part, then k-2 occurs as a part.at n=47A119907
• Number of 4-tuples (w,x,y,z) with all terms in {1,...,n} and w*x>2*y*z.at n=17A211797
• Number of composites removed in each step of the Sieve of Eratosthenes for 10^7.at n=15A227155
• Compositions with superdiagonal growth: number of compositions (p0, p1, p2, ...) of n with pi - p0 >= i.at n=40A238861
• Molien series for invariants of finite Coxeter group A_9.at n=63A266778
• Sum of the third largest parts in the partitions of n into 8 parts.at n=42A308996
• Numbers that are the sum of eight fourth powers in exactly ten ways.at n=24A345842
• Number of integer partitions of n with integer mean and integer median.at n=47A359906
• G.f. satisfies A(x) = 1 + x*A(x) / (1 - x^5*A(x)^2).at n=21A365734
• Difference between the primorial base exp-function and the arithmetic derivative.at n=57A373849
• a(0) = 1; thereafter a(n) = 2*(6*n^2 - 3*n + 1).at n=47A386477