23132

Appears in sequences

• Number of partitions into non-integral powers.at n=21A000339
• Number of numbers below 10^n with nonzero multiplicative digital root 5.at n=5A051825
• Palindromic even numbers with exactly 3 prime factors (counted with multiplicity).at n=32A075816
• a(n) = concatenate(n, A010888(2*n), reverse(n)), where A010888 = digital root.at n=22A082944
• Terms of A083393 such that the sum of the factorials of the digits is prime.at n=13A083394
• Palindromes n such that 4n + 1 is also a palindrome.at n=17A083831
• Real part of absolute Gaussian perfect numbers, in order of increasing magnitude.at n=34A102531
• Palindromic primes in base 5 (written in base 5).at n=13A117700
• Palindromic primes in base 7 (written in base 7).at n=22A117702
• Triangle read by rows: T(n,k) is the number of 2-compositions of n having k columns with an odd sum (0<=k<=n). A 2-composition of n is a nonnegative matrix with two rows, such that each column has at least one nonzero entry and whose entries sum up to n.at n=57A181308
• Palindromes m such that m*(sum of digits of m) is also a palindrome.at n=33A229805
• Median of terms of A254296 in the range (3^(n-1)+1)/2 to (3^n-1)/2.at n=6A254439
• Palindromes in A254296.at n=13A254440
• Numbers k such that 417*2^k+1 is prime.at n=46A323108
• Concatenation of sum n+(n+1) and product n*(n+1) in decimal.at n=11A337148