Smallest palindromic multiple of n in which the digit string of n appears as sandwiched between at least a pair of digits, or 0 if n = 10k or no such number exists.

A084043

Smallest palindromic multiple of n in which the digit string of n appears as sandwiched between at least a pair of digits, or 0 if n = 10k or no such number exists.

Terms

    a(0) =111a(1) =222a(2) =333a(3) =444a(4) =555a(5) =666a(6) =777a(7) =888a(8) =999a(9) =0a(10) =1111a(11) =82128a(12) =41314a(13) =414414a(14) =55155a(15) =61616a(16) =317713a(17) =41814a(18) =41914a(19) =0a(20) =912219a(21) =2222a(22) =52325a(23) =2324232a(24) =52525a(25) =82628a(26) =82728a(27) =828828a(28) =52925a(29) =0

External references