28679

Appears in sequences

• Dirichlet convolution of Fibonacci numbers with phi(n).at n=22A034748
• Base-8 palindromes that start with 7.at n=18A043027
• Number of nonempty subsets of {1,2,...,n} in which exactly 1/4 of the elements are <= (n-4)/2.at n=18A048063
• Number of nonempty subsets of {1,2,...,n} in which exactly 1/4 of the elements are <= (n+2)/3.at n=18A048074
• Number of nonempty subsets of {1,2,...,n} in which exactly 1/4 of the elements are <= (n+3)/3.at n=18A048085
• Family 1 "Rule 90 x Rule 150 Array" read by antidiagonals.at n=33A048710
• 3rd column of Family 1 "90 x 150 array": generations 0 .. n of Rule 150 starting from seed pattern 17.at n=5A048714
• a(n) = n + Fibonacci(n+1).at n=22A081659
• Numbers whose set of base 8 digits is {0,7}.at n=17A097254
• Integers i such that 41*i = 105 X i.at n=20A115876
• Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+241)^2 = y^2.at n=9A129991
• a(n) is the number whose binary representation is A138145(n).at n=14A147596
• a(n) is the number whose binary representation is A138146(n).at n=7A147597
• Numbers k such that 2^(k+1) == 1 (mod k).at n=26A187787
• Number of partitions of n such that 2*(greatest part) <= (number of parts).at n=48A237752
• Palindromic numbers in bases 2 and 8 written in base 10.at n=57A259380
• Numbers in base 10 that are palindromic in bases 2, 8, and 16.at n=12A319585
• Positive numbers k such that the binary and negabinary representations of k and the negabinary representation of -k are all palindromic.at n=40A331895
• Numbers that are palindromic in base 2 and base 16.at n=41A340559