Iccanartet sequence: a(n)=R[a(n-1)]+R[a(n-2)]+R[a(n-3)]+R[a(n-4)] where a(1)=a(2)=a(3)=a(4)=1 and R(n) (A004086) is the reverse of n.

A074862

Iccanartet sequence: a(n)=R[a(n-1)]+R[a(n-2)]+R[a(n-3)]+R[a(n-4)] where a(1)=a(2)=a(3)=a(4)=1 and R(n) (A004086) is the reverse of n.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =7a(6) =13a(7) =43a(8) =76a(9) =139a(10) =1063a(11) =4633a(12) =7963a(13) =11593a(14) =50173a(15) =83677a(16) =157951a(17) =314005a(18) =774907a(19) =1447279a(20) =11097082a(21) =39016342a(22) =62877022a(23) =84245371a(24) =91872178a(25) =150920986a(26) =815588944a(27) =1243396636

External references