20044

Appears in sequences

• Numbers n such that the number formed by the digits of 2n sorted in ascending order is equal to the sum of the divisors of n after the digits of each divisor have been sorted in ascending order.at n=5A083387
• Number of nX4 0..1 arrays with every element equal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=5A299563
• Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=3A299565
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=39A299567
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=41A299567
• Number of (undirected) paths in the n-book graph.at n=16A307921
• Least number of consecutive primes beginning with 2, the sum of which (A007504) is >= 2^n.at n=31A323360
• Number of integer partitions of n such that, for all parts x, x - 1 or x + 1 is also a part.at n=51A355394