65719

Properties

Appears in sequences

• Expansion of 1/(x^k*(1-x-3*x^(k+1))) for k=5.at n=27A143456
• Number of nX3 1..2 arrays containing at least one of each value, all equal values connected, and rows considered as a single number in nondecreasing order.at n=39A166781
• Primes of the form 3n^2 + 7.at n=19A201479
• Number A(n,k) of 3n-length k-ary words, either empty or beginning with the first letter of the alphabet, that can be built by repeatedly inserting triples of identical letters into the initially empty word; square array A(n,k), n>=0, k>=0, by antidiagonals.at n=51A213027
• Number of 3n-length 3-ary words, either empty or beginning with the first letter of the alphabet, that can be built by repeatedly inserting triples of identical letters into the initially empty word.at n=6A218473
• Least positive integer k such that prime(k*n) has the form p^2 - 2 with p prime, or 0 if no such k exists.at n=41A253257
• Numbers k such that A272718(k) is divisible by k.at n=11A355542
• Prime numbersat n=6567