57453

Appears in sequences

• Number of twin prime pairs <= product of first n primes.at n=7A000882
• A Fielder sequence. a(n) = a(n-1) + a(n-3) + a(n-4) + a(n-5), n >= 6.at n=20A001639
• Number of partitions p of n such that m(p) < m(c(p)), where m = maximal multiplicity of parts, and c = conjugate.at n=46A240726
• Number of nX3 0..1 arrays with every element unequal to 1, 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.at n=6A316378
• Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.at n=2A316382
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.at n=38A316383
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.at n=42A316383
• Antidiagonal sums of the array defined in A385623.at n=42A385624
• Number of integer partitions of n whose parts do not have choosable sets of strict integer partitions.at n=43A387137