23632
domain: N
Appears in sequences
- Expansion of (theta_3(z)*theta_3(11z) + theta_2(z)*theta_2(11z))^4.at n=23A028612
- Numbers that are palindromic in bases 10 and 15.at n=19A029970
- Even palindromes in which parity of digits alternates.at n=33A030149
- Cubeful (i.e., not cubefree) palindromes.at n=40A035133
- Palindromic and divisible by 8.at n=31A045643
- Palindromes with exactly 6 prime factors (counted with multiplicity).at n=7A046332
- Smallest palindromic multiple of n-th prime.at n=46A062888
- Palindromic integers > 0, whose 'Reverse and Add!' trajectory (presumably) does not lead to another palindrome.at n=7A070001
- A unitary phi reciprocal amicable number: consider two different numbers r, s which satisfy the following equation for some integer k: uphi(r) = uphi(s) = (1/k) * r * s / (r-s); or equivalently, 1/uphi(r) = 1/uphi(s) = k * (1/s - 1/r); sequence gives k numbers.at n=48A080768
- Molien series for genus 2 complete weight enumerators of self-dual codes over GF(3) containing the all-ones vector.at n=7A092070
- <h[d,d],s[d,d]*s[d,d]*s[d,d]> where h[d,d] is a homogeneous symmetric function, s[d,d] is a Schur function indexed by two parts, * represents the Kronecker product and <, > is the standard scalar product on symmetric functions.at n=38A115375
- Palindromes for which the multiplicative digital root is a prime.at n=30A117059
- Palindromes whose squares belong to A066531.at n=3A117281
- Numbers which are the product of a non-palindrome and its reversal, where leading zeros are not allowed.at n=37A129623
- Biquadrateful (i.e., not biquadrate-free) palindromes.at n=13A133514
- Palindromic numbers which are the product of a number k and its reversal (k written backwards).at n=11A158642
- Palindromic Ulam numbers.at n=37A173542
- Numbers whose square is the product of a number and its reverse.at n=10A207373
- Number of endofunctions on [7] that are the n-th power of an endofunction.at n=30A247058
- Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and column sum not equal to 0 2 3 6 or 7 and every 3X3 diagonal and antidiagonal sum equal to 0 2 3 6 or 7.at n=17A252257