24403

Appears in sequences

• Number of partitions of n with equal number of parts congruent to each of 3 and 4 (mod 5).at n=47A035561
• Numerators of continued fraction convergents to sqrt(59).at n=8A041102
• Numerators of continued fraction convergents to sqrt(531).at n=2A042014
• a(n) is the number of nonnegative integers k less than 10^n such that the decimal representation of k lacks the digits 1,2,3, at least one of digits 4,5, at least one of digits 6,7 and at least one of digits 8,9.at n=5A126718
• Number of nXnXn triangular 0..7 arrays with no element equal to the sum mod 8 of any two neighbors.at n=2A193187
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 597", based on the 5-celled von Neumann neighborhood.at n=28A273146
• Numbers n such that A280864(n) = n.at n=16A280754
• a(n) = n*(2*n^2 + 3), n >= 1; a(0)=1.at n=23A288534
• a(n) = n * n!! - Sum_{k=1..n-1} k!! * a(n-k).at n=9A330436
• a(n) = n! * Sum_{k=0..floor(n/2)} k^k / (k! * (n-2*k)!).at n=7A362347
• Expansion of (1/x) * Series_Reversion( x/(x+1/(1-x-x^3)) ).at n=8A370797
• Centered heptagonal numbers which are semiprime.at n=30A381960