28888

Appears in sequences

• Numbers k such that k^2+k+6 is a palindrome.at n=10A027729
• Smallest positive number that needs more lines when shown on a 7-segment display (digital clock) than any previous term.at n=28A038619
• Numbers having four 8's in base 10.at n=2A043524
• Numbers with digits nondecreasing and their reciprocals sum to 1/(positive integer).at n=28A045910
• T(n,n-1), array T as in A047110.at n=9A047113
• Numbers m such that 2^m reversed is prime.at n=31A057708
• Numbers such that harmonic mean of digits is 5.at n=5A062183
• Numbers with digits in nondecreasing order such that sum of the reciprocals of the digits is 1.at n=11A091783
• Numbers n with digits in nondecreasing order such that sum of the reciprocal of digits is an integer.at n=34A091784
• Where record values occur in A010371.at n=26A143617
• Number of binary strings of length n with no substrings equal to 0001 0101 or 0110.at n=17A164469
• Number of 3-step king's tours on an n X n board summed over all starting positions.at n=23A186862
• Smallest positive number using exactly n segments on a calculator display (when '6' and '7' are represented using 6 resp. 3 segments).at n=31A216261
• Unmatched value maps: number of n X 4 binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..1 n X 4 array.at n=4A218838
• T(n,k)=Unmatched value maps: number of nXk binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..1 nXk array.at n=32A218842
• Unmatched value maps: number of 5Xn binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..1 5Xn array.at n=3A218846
• T(n,k)=Unchanging value maps: number of nXk binary arrays indicating the locations of corresponding elements unequal to no horizontal or antidiagonal neighbor in a random 0..2 nXk array.at n=32A219421
• Unchanging value maps: number of 5 X n binary arrays indicating the locations of corresponding elements unequal to no horizontal or antidiagonal neighbor in a random 0..2 5 X n array.at n=3A219425
• Numbers n such that Bernoulli number B_{n} has denominator 1410.at n=33A272369
• a(n) = -c(n-1) * c(n-2) * c(n+3) where c(n) = A006769(n).at n=11A278314