7256527

Properties

Appears in sequences

• Tribonacci numbers: a(n) = a(n-1) + a(n-2) + a(n-3) with a(0)=0, a(1)=1, a(2)=0.at n=29A001590
• Consider all quadruples {a,b,c,d} which reach {k,k,k,k} in n steps under map {a,b,c,d}->{|a-b|,|b-c|,|c-d|,|d-a|}; look at max{a,b,c,d}; sequence gives minimal value of this.at n=40A045794
• a(n) = Sum_{k=0..n} T(n, k), array T as in A047080.at n=26A047081
• Minimum value t such that all quadruples of Diffy_length >= n have a maximal value >= t.at n=42A065678
• Expansion of (1-x)/(1+x-x^2+x^3).at n=26A078042
• Number of compositions of n into parts all relatively prime to n.at n=27A100347
• The 2^n-th palindromic prime.at n=9A103405
• Primes in A001590.at n=5A231574
• Palindromes in tribonacci sequence with initial values 0,1,0 (A001590).at n=6A294720
• Numbers of the form t_n or t_n + t_{n+1} where {t_n} are the tribonacci numbers A000073.at n=51A308189
• Prime numbersat n=492901