55245

Appears in sequences

• Number of segments (and sides) created by diagonals of an n-gon in general position.at n=27A014628
• Cubic star numbers: a(n) = n^3 + 4*Sum_{i=0..n-1} i^2.at n=29A051673
• T(n,n-5), where T is the array in A055830.at n=28A055832
• Sarrus numbers with more than 2 distinct prime factors.at n=31A080747
• Structured small rhombicosidodecahedral numbers.at n=14A100148
• Pseudotwinprimes p+2 for primes p such that p+2 divides p^(p+2)+2 and p+2 is composite.at n=22A100873
• Pseudoprimes (base-2) equal to product of 4 primes not necessarily distinct.at n=5A112441
• Row sums of triangle A134392.at n=28A134393
• Fermat pseudoprimes to base 2 of the form (6*k - 1)*((6*k - 2)*n + 1), where k and n are positive integers.at n=29A210993
• Number of nonnegative integer arrays of length n+2*3-2 with new values introduced in order 0 upwards and every value appearing only in runs of at least 3.at n=19A211695
• Pseudoprimes divisible by a smaller pseudoprime.at n=3A215150
• Fermat pseudoprimes to base 2 divisible by 5.at n=11A216023
• Fermat pseudoprimes to base 2 divisible by 15.at n=3A216364
• Fermat pseudoprimes to base 2 which are not Euler pseudoprimes to base 2.at n=23A227136
• Zeroless numbers k such that k - (sum of digits of k) and k - (product of digits of k) contain the same distinct digits as k.at n=26A248717
• Poulet numbers which are not super-Poulet numbers.at n=31A306487