24458

Appears in sequences

• Pisot sequences L(3,7) or S(3,7).at n=10A020730
• Number of chiral pairs of necklaces with n beads and two colors (color complements being equivalent); i.e., turning the necklace over neither leaves it unchanged nor simply swaps the colors.at n=21A059053
• a(0) = 0, a(1) = 1, a(2) = 1, a(3) = 2, a(4) = 4, for n>3: a(n+1) = SORT[a(n) + a(n-1) + a(n-2) + a(n-3)], where SORT places digits in ascending order and deletes 0's.at n=33A108564
• a(1)=-1, a(2)=2, thereafter a(n) = (1/(2n))*((7n-22)a(n-1)+2(2n-1)a(n-2)).at n=14A210685
• a(n) = Sum_{i=0..n} digsum_9(i)^4, where digsum_9(i) = A053830(i).at n=20A231687
• Number of partitions p of n such that the multiplicity of min(p)*max(p) is a part.at n=39A240498
• a(n) = A053656(n) - A000011(n).at n=20A256216
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 158", based on the 5-celled von Neumann neighborhood.at n=40A270335
• Expansion of Product_{k>=1} 1/(1 - x^k)^(k!!).at n=11A280088
• Expansion of Product_{k>=1} 1/(1 - (x*(1 - x))^k).at n=22A307500