38485

Appears in sequences

• Number of partitions of n into parts not of the form 19k, 19k+7 or 19k-7. Also number of partitions with at most 6 parts of size 1 and differences between parts at distance 8 are greater than 1.at n=42A035976
• a(1) = a(2) = 1; for n>2, a(n+1) = a(n) + a(n-1) iff n is prime, otherwise a(n+1) = a(n) + 1.at n=49A113050
• Number of n X 1 1..2 arrays with every element value z a city block distance of exactly z from another element value z.at n=29A209603
• Number of 2 X 2 matrices having all terms in {1,...,n} and positive even determinant.at n=18A211067
• Number of (w,x,y) with all terms in {0,...,n} and 2*max(w,x,y) >= 3*min(w,x,y).at n=34A213392
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 809", based on the 5-celled von Neumann neighborhood.at n=33A273612
• Number of compositions (ordered partitions) of n into at most 6 nonprime parts.at n=44A347799
• Triangle read by rows: numerators of the almost-Riordan array ( (3 - 3*x)/(2*x^2 - 6*x + 3) | 3/(2*x^2 - 6*x + 3), (1 - 3*x - sqrt(5*x^2 - 6*x + 1))/(2*x) ).at n=49A389749
• Number of ways to partition digits 0-9 into signed terms in decreasing absolute value order with sum n.at n=30A389952