32004

Appears in sequences

• Star of David matchstick numbers: a(n) = 6*n*(3*n+1).at n=42A045946
• Starting from generation 8 add previous and next term yielding generation 9.at n=30A048455
• a(n) = 4*n^3 + 4.at n=20A100214
• a(n) = Sum_{k=1..n} k*(prime(k) - k).at n=26A110477
• a(n)=2a(n-1) but when sum of digits of 2a(n-1) is greater than 9 take a(n) = largest number < 2a(n-1) which has sum of digits = 9.at n=15A140134
• The number of orbits of 4-tuples of the dihedral group of order 2n acting on {1,2,...,n}.at n=39A236332
• Number of partitions of n into 8 parts such that every i-th smallest part (counted with multiplicity) is different from i.at n=29A244244
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 51", based on the 5-celled von Neumann neighborhood.at n=35A270020
• a(n) = 3*n*(n^2 + 3*n + 4).at n=21A280304
• Number of 3 X n matrices with 3*n/2 1's (if n is even) or (3*n+1)/2 1's (if n is odd) that do not have a horizontal nor vertical nor diagonal 3-streak of 1's.at n=20A339631
• Number of final Tic-Tac-Toe positions on a (2*n) X 3 board that resulted in a tie.at n=10A339633
• Smaller member of a noninfinitary amicable pair: numbers (k, m) such that nisigma(k) = m and nisigma(m) = k, where nisigma(k) is the sum of the noninfinitary divisors of k (A348271).at n=5A348343
• a(n) is the number of n-subsets of [0..p-1] whose n*(n-1) differences are congruent to 1..p-1 (mod p), where p=n*(n-1)+1.at n=19A351690