22622

Appears in sequences

• Expansion of log(1+log(1+x))*cosh(x).at n=7A009314
• Numbers whose set of base-12 digits is {1,2}.at n=31A032932
• Numbers having four 2's in base 10.at n=27A043500
• Palindromes with exactly 2 palindromic prime factors (counted with multiplicity), and no other prime factors.at n=29A046376
• Palindromes with exactly 2 distinct palindromic prime factors.at n=25A046408
• Palindromic even squarefree numbers with an even number of distinct prime factors.at n=20A075811
• Palindromic even numbers with exactly 2 prime factors (counted with multiplicity). Equivalently, palindromic numbers of the form 2*p with p prime.at n=15A075813
• Palindromes in A085934.at n=34A085935
• Near-repdigit semiprimes with 2 as repeated digit.at n=20A105983
• Palindromes equal to the sum of a prime number with its index.at n=34A115888
• Number of lower triangles of a 3 X 3 0..n array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by two or less.at n=22A195249
• a(n) = A047848(9, n).at n=5A196791
• Numbers n with nonzero digits such that n*(product of digits of n) is a palindrome.at n=38A229550
• Zeroless numbers n such that n and n*product_of_digits(n) are both palindromes.at n=19A229804
• Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001.at n=3A259954
• Number of (n+2) X (4+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001.at n=3A259958
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001.at n=24A259962
• Andrews's shadow difference function D_3(q).at n=42A275633
• Numbers n with digits 2 and 6 only.at n=34A284632
• Number of Motzkin meanders of length n with no level steps at odd level.at n=12A307557