a(n) is the smallest positive integer which can be represented as the sum of distinct centered n-gonal numbers in exactly n ways, or 0 if no such integer exists.

A350209

a(n) is the smallest positive integer which can be represented as the sum of distinct centered n-gonal numbers in exactly n ways, or 0 if no such integer exists.

Terms

    a(0) =65a(1) =151a(2) =330a(3) =316a(4) =515a(5) =645a(6) =888a(7) =824a(8) =1017a(9) =1348a(10) =1474a(11) =1614a(12) =1655a(13) =2006a(14) =2233a(15) =2255a(16) =2779a(17) =2805a(18) =2882a(19) =2865a(20) =3364a(21) =3653a(22) =3930a(23) =4035a(24) =4325a(25) =4765a(26) =4675a(27) =5016a(28) =4904a(29) =5446

External references