a(n) is the least number that can be represented in exactly n ways as the sum of a prime and its digit reversal.

A344871

a(n) is the least number that can be represented in exactly n ways as the sum of a prime and its digit reversal.

Terms

    a(0) =1a(1) =4a(2) =44a(3) =88a(4) =1090a(5) =3212a(6) =4334a(7) =2992a(8) =5995a(9) =4994a(10) =7997a(11) =9779a(12) =5104a(13) =11110a(14) =11891a(15) =10109a(16) =11000a(17) =10780a(18) =108880a(19) =110500a(20) =252142a(21) =278872a(22) =296692a(23) =293282a(24) =308902a(25) =287782a(26) =411103a(27) =289982a(28) =466664a(29) =281072

External references