49995

Appears in sequences

• a(n) = ceiling(n*phi^17), where phi is the golden ratio, A001622.at n=14A004972
• a(n) = n*(n^4-1)/2.at n=8A027484
• Number of primes between successive Lucas numbers.at n=28A052012
• a(n)^5 is the smallest fifth power whose decimal digits occur with same frequency n.at n=2A054212
• Numbers k such that (k + R(k)) / (k - R(k)) = +-11 where R(k) is the digit reversal of k (A004086).at n=9A062390
• Bessel polynomial {y_n}'(-2).at n=5A065707
• Smallest multiple of 5 with digit sum n.at n=35A069534
• a(n) = 5*(10^n - 1).at n=4A086576
• Numbers k for which the quotient q(k)=(k+rev(k))/abs(k-rev(k)) is an integer.at n=22A087993
• Numbers k such that k and k^2 use only the digits 0, 2, 4, 5 and 9.at n=57A136901
• Number triangle with row sums given by quadruple factorial numbers A001813.at n=23A168422
• 6*n/5 = (n written backwards), n > 0.at n=5A193434
• Principal diagonal of the convolution array A213561.at n=10A213562
• Murai Chuzen numbers.at n=28A225488
• Murai Chuzen numbers.at n=37A225488
• Number of length-4 0..n arrays with no repeated value unequal to the previous repeated value plus one mod n+1.at n=13A268945
• Number of nX4 0..1 arrays with every element equal to 0, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=28A303321
• Numbers m such that the largest digit in the decimal expansion of 1/m is 2.at n=22A341383
• Numbers k such that R(k)/k is of the form (m + 1)/m, where R(k) is the digital reversal of k.at n=11A376259