41473

Appears in sequences

• Multilevel sieve: at k-th step, accept k numbers, reject k, accept k, ...at n=12A005209
• a(n) = 2*a(n-1) + 2*a(n-2) - a(n-3) with a(-1) = 1, a(0) = 1, a(1) = 1.at n=13A061646
• Expansion of 1/(1-2*x+x^2+x^3).at n=32A077941
• Expansion of 1/(1 + 2*x + x^2 - x^3).at n=32A077990
• Pierpont semiprimes: semiprimes of the form (2^K)*(3^L)+1.at n=38A113432
• a(n) = a(n-1) + a(n-3) + a(n-4), with a(0)=a(1)=a(2)=a(3)=1.at n=24A126116
• Number of base 17 n-digit numbers with adjacent digits differing by two or less.at n=6A126404
• a(n) = 32*n^2 + 1.at n=36A158575
• a(n) = 72*n^2 + 1.at n=24A158740
• Number of (n+1)X(1+1) 0..2 arrays colored with the maximum plus the upper median of every 2X2 subblock.at n=4A236611
• Number of (n+1)X(5+1) 0..2 arrays colored with the maximum plus the upper median of every 2X2 subblock.at n=0A236615
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the maximum plus the upper median of every 2X2 subblock.at n=10A236618
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the maximum plus the upper median of every 2X2 subblock.at n=14A236618
• 6th-largest term in n-th row of Stern's diatomic triangle A002487.at n=18A244476
• a(n) = 2^n * n^2 + 1.at n=9A248917
• Number of terms of A293630 at stage n.at n=13A291481
• a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 1, a(1) = 2, a(2) = 3, a(3) = 4.at n=22A293411
• a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 1, a(1) = 1, a(2) = 1, a(3) = -1.at n=26A295671
• Number of pairs (lambda,mu) of partitions lambda of n and mu of four with mu <= lambda (by diagram containment).at n=28A303854
• Number of partitions of the vertices of the n-ladder graph into total dominating sets.at n=12A392415