279720

Appears in sequences

• Kaprekar triples: q such that q = x + y + z and q^3 = x*10^2n + y*10^n + z, where z < 10^n and n is the number of digits in q. q is not a power of 10 (except q=1).at n=21A006887
• a(n) = n^2*(n^2 - 1)/6.at n=36A008911
• Erroneous version of A006887.at n=22A060809
• Pentagonal numbers (A000326) whose digit reversal is the product of 2 palindromes greater than 1.at n=28A115703
• Perimeter s/6 (divided by 6) of primitive Pythagorean triangles such that perimeters are Averages of twin prime pairs, q=p+1, a=q^2-p^2, c=q^2+p^2, b=2*p*q, s=a+b+c, s-+1 are primes.at n=32A155176
• Number of arrangements of n indistinguishable balls in n boxes with the maximum number of balls in any box equal to n-3.at n=32A180293
• Numbers with prime factorization pqrs^3t^3.at n=16A190385
• Non-palindromes whose squares are in A066531.at n=20A206642
• a(n) = sum of n-digit numbers with distinct nonzero digits.at n=2A213880
• Number of length n primitive (=aperiodic or period n) 6-ary words which are earlier in lexicographic order than any other word derived by cyclic shifts of the alphabet.at n=7A320071
• a(n) is the first number with a total of exactly n 3's in the decimal digits of its divisors.at n=41A387464
• Triangle read by rows: T(n,k) is the number of nested cycle partitions of n labeled nodes into k components.at n=39A392471