41444

Appears in sequences

• Numbers having four 4's in base 10.at n=5A043508
• Number of subsets A of {1..n} such that there are no solutions to a+b+c=d for a,b,c,d in A.at n=21A093970
• Self-describing integers with the rule: if the digit d, part of the integer i, is odd then there are d odd digits in this integer; if the digit d is even there are d even digits.at n=18A105776
• Any digit d in the sequence says: "I am part of an integer in which you'll find d digits d".at n=22A108571
• Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 15 and every element equal to at least one neighbor.at n=2A146502
• 1, followed by list of numbers n such that the number of strong primes and the number of weak primes are equal at the n-th prime.at n=41A175102
• Number of nX5 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 1 1 1 vertically.at n=5A207842
• T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 1 1 1 vertically.at n=50A207845
• Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 1 1 1 vertically.at n=4A207849
• Numbers n such that there are precisely 15 groups of orders n and n + 1.at n=20A295995
• Number of nX6 0..1 arrays with every element unequal to 0, 1, 2 or 4 king-move adjacent elements, with upper left element zero.at n=7A303798