23232

Appears in sequences

• Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MTT = ZSM-23 Nan[AlnSi24-nO48] starting with a T3 atom.at n=13A019188
• Expansion of (theta_3(z^4)^3 + theta_2(z^4)^3)^4.at n=15A028697
• Even palindromes in which parity of digits alternates.at n=31A030149
• Theta series of extremal 3-modular even lattice in dimension 22.at n=3A034621
• Cubeful (i.e., not cubefree) palindromes.at n=38A035133
• Numbers that are palindromic, divisible by 11 and have an odd number of digits.at n=20A045571
• Palindromes that are divisible by 6.at n=39A045641
• Palindromic and divisible by 8.at n=29A045643
• Palindromes with exactly 9 prime factors (counted with multiplicity).at n=3A046335
• Palindromes with exactly 9 palindromic prime factors (counted with multiplicity).at n=2A046383
• Palindromic untouchable numbers.at n=32A048187
• Iterated procedure 'composite k added to sum of its prime factors reaches a prime' yields 1 skipped prime.at n=13A050768
• a(n) contains n digits (either '2' or '3') and is divisible by 2^n.at n=4A053316
• Column 9 of triangle A055907.at n=5A055915
• Numbers n with property that every digit is a prime factor of n.at n=28A062239
• a(n) = A062401(A065391(n)): phi(sigma(m)) peak values for numbers m (listed in A065391) at which those peaks are first reached.at n=23A065392
• Numbers n such that A001414(n) = sum of composites from the smallest prime factor of n to the largest prime factor of n.at n=11A074053
• Multiples of 6 with only prime digits (2, 3, 5 and 7).at n=33A077535
• Smallest multiple of n which begins with R(n) and ends in n where R(n) (A004086) is the digit reversal of n. Suitable number of zeros are assumed to the left of the MSD if required.at n=31A077741
• a(1) = 2, a(n+1) = smallest multiple of a(n) using only prime digits (2,3,5,7).at n=3A078232