100122

Appears in sequences

• Positive numbers k such that k and 2*k are anagrams of each other in base 3 (k is written here in base 3).at n=7A023058
• Smallest number whose digits can be permuted to get exactly n distinct palindromes.at n=7A082276
• Triangle read by rows: n-th row contains the first n n-digit multiples of n with digit sum n. If there are fewer than n such numbers, the rest of the row is filled with 0's.at n=19A084029
• Digitally balanced numbers: ternary numbers which have the same number of 0's as 1's as 2's.at n=4A181986
• Table read by row, where T(n,k), n>0 and k>0, represents the smallest n-digit number that is the product of k distinct primes and is sandwiched between semiprime numbers, or -1 if no such number exists.at n=22A379167