100255

Appears in sequences

• Composites that use the same digits as their prime factorization.at n=12A025283
• 1, together with numbers n that are the product of two primes p and q such that the multiset of the digits of n coincides with the multiset of the digits of p and q.at n=5A080718
• Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 0010-1010-1111 pattern in any orientation.at n=15A146781
• Composite numbers having the same digits as their prime factors (with multiplicity), excluding zero digits.at n=9A176670
• Half-convolution of sequence A000032 (Lucas) with itself.at n=19A201207
• Bisection of A099924 (Lucas convolution); one half of the terms with odd arguments.at n=9A203574
• Numbers <= 10^6 with valid Luhn mod 10 check digit, sorted lexicographically.at n=29A249854
• Composite numbers having the same digits as their prime factors (with multiplicity), including zero digits.at n=4A280928
• Composite numbers that are anagrams of the concatenation of their prime factors.at n=17A306474