46499

Properties

Appears in sequences

• Tribonacci numbers: a(n) = a(n-1) + a(n-2) + a(n-3) with a(0)=a(1)=a(2)=1.at n=19A000213
• 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=27A045794
• Primes whose digits are composite; primes having only {4, 6, 8, 9} as digits.at n=25A051416
• Primes in the tribonacci sequence A000213.at n=7A056816
• Numbers k such that the smoothly undulating palindromic number (4*10^k-7)/33 = 121...21 is a prime (or PRP).at n=10A062209
• Minimum value t such that all quadruples of Diffy_length >= n have a maximal value >= t.at n=29A065678
• Every digit of prime and its index contains a loop (only digits 0,4,6,8,9 in prime and its index).at n=6A107625
• Primes having only {4, 6, 9} as digits.at n=12A107666
• Prime differences of tribonacci numbers.at n=22A113239
• Hilltop maps: number of n X 2 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..1 n X 2 array.at n=8A221440
• Primes which become palindromic primes when the digits are rotated once to the right.at n=26A235000
• Prime p1 of consecutive primes p1, p2, where p2 - p1 = 8, and p1, p2 are in different centuries.at n=31A287049
• Number of 7 X n 0..1 arrays with every element equal to 0 or 1 horizontally or antidiagonally adjacent elements, with upper left element zero.at n=16A301796
• Primes having only {0, 4, 6, 9} as digits.at n=27A386073
• Primes having only {4, 5, 6, 9} as digits.at n=33A386189
• Prime numbersat n=4806