a(1) = 1; for n>1, a(n) = smallest number which is not a sum or product or power of any subset of the numbers a(1) to a(n-1).

A126326

a(1) = 1; for n>1, a(n) = smallest number which is not a sum or product or power of any subset of the numbers a(1) to a(n-1).

Terms

    a(0) =1a(1) =2a(2) =5a(3) =9a(4) =13a(5) =31a(6) =35a(7) =92a(8) =118a(9) =280a(10) =516a(11) =752a(12) =1618a(13) =1968a(14) =5090a(15) =6594a(16) =15620a(17) =19556a(18) =48364a(19) =61552a(20) =149028a(21) =188140a(22) =460272a(23) =583376a(24) =1419928a(25) =1796208a(26) =4382888a(27) =5549640a(28) =13524944a(29) =17117360

External references