33700

Appears in sequences

• Numbers k such that 253*2^k+1 is prime.at n=34A032503
• Truncated square pyramid numbers: a(n) = Sum_{k = n..2*n} k^2.at n=24A050409
• a(n) = A052217(n)/3.at n=43A088405
• a(n) = (-7*3^n+(-3)^n+6*4^n) / 42.at n=9A167889
• Number of 6-step S, E, and NW-moving king's tours on an n X n board summed over all starting positions.at n=18A187511
• Number of (w,x,y,z) with all terms in {1,...,n} and w>=2x and y<3z.at n=20A212520
• Convolution of Fibonacci numbers (A000045) and partition numbers (A000041).at n=19A275388