Nonascending wiggly sums: number of sums adding to n in which terms alternately do not increase and do not decrease.
A129853
Nonascending wiggly sums: number of sums adding to n in which terms alternately do not increase and do not decrease.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =9a(6) =17a(7) =28a(8) =50a(9) =85a(10) =149a(11) =257a(12) =448a(13) =775a(14) =1347a(15) =2336a(16) =4057a(17) =7038a(18) =12219a(19) =21204a(20) =36807a(21) =63880a(22) =110878a(23) =192442a(24) =334020a(25) =579739a(26) =1006237a(27) =1746482a(28) =3031310a(29) =5261324
External references
- oeis: A129853