22676

Appears in sequences

• Numbers n such that 3*10^n-7 is prime.at n=13A102964
• G.f. satisfies A(x) = 1 + x*(1 + x*A(x)^4)^2.at n=8A137955
• Number of (n+1)X(3+1) 0..2 arrays with the maximum plus the upper median plus the lower median plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=2A237370
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the upper median plus the lower median plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=12A237375
• Number of partitions of n such that the number of parts is a part and the number of distinct parts is not a part.at n=52A241379
• Least integer m > 0 with pi(m*n) = sigma(m) + sigma(n), where pi(.) and sigma(.) are given by A000720 and A000203 respectively.at n=16A247673
• G.f. = b(2)*b(4)*b(6)/(x^8+x^6-x^5+x^4-2*x^3-x+1), where b(k) = (1-x^k)/(1-x).at n=18A266340
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 345", based on the 5-celled von Neumann neighborhood.at n=31A271295