1357997531

Appears in sequences

• Least palindromic multiple of concatenation 1,2,3,...n-1,n,n-1,...3,2,1.at n=4A109930
• Number generated by regarding the numbers in row n of A157454 as digits of a base n number.at n=9A157455
• Read n-th row of triangle in A157458 and regard it as the expansion of a number in base n+1.at n=9A157457
• a(2n-1) is concatenation of sequence (1,3,..,2n-3,2n-1,2n-3,..3,1) and a(2n) is concatenation of sequence (1,3,..,2n-3,2n-1,2n-1,2n-3,..3,1).at n=9A287295