19941

Appears in sequences

• Numbers that are the sum of 6 nonzero 8th powers.at n=19A003384
• Expansion of (1+2*x+3*x^2)/((1-x)^3*(1-x^2)).at n=33A055232
• Sum of partial sums of partition numbers (A026905) and partial sums of numbers of partitions into distinct parts (A026906).at n=27A056871
• Numbers k such that 3*2^k - 7 is prime.at n=34A059747
• Smallest of 4 consecutive numbers each divisible by a square.at n=32A070284
• Triangle read by rows in which the n-th row gives the smallest set of n consecutive numbers with the same prime signatures.at n=7A083785
• Number of squarefree permutations of 1,...,n that are fixed under reverse-complement, up to symmetry.at n=16A238942
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 229", based on the 5-celled von Neumann neighborhood.at n=30A270948
• Number of preference profiles with 4 alternatives and n agents (IANC model).at n=6A296260
• Number of partitions of n into an even number of parts that are not multiples of 3.at n=54A339404
• a(n) = n! * Sum_{k=0..n} k^(k*(n-k))/k!.at n=5A356674