76197domain: NAppears in sequences24 'Reverse and Add' steps are needed to reach a palindrome.at n=56A065318Odd numbers divisible by 3 which are neither of the form p + 3^m + 1 nor of the form p + 3^m - 1 with p prime.at n=11A282191Number of unique X-rays of n X n binary matrices with exactly n ones.at n=38A290133