(0=0, 1=1, 2=2, 3=3, 4=2^2, 5=5, 6=2*3, 7=7, 8=2^3, 9=3^2, 10=2*5, 11=11, 12=2^2*3, ...) becomes (0*0*1, 1*2*2, 3*3*4, 2*2*5, 5*6*2, 3*7*7, 8*2*3, 9*3*2, 10*2*5, 11*11*12, 2*2*3, ...).
A144153
(0=0, 1=1, 2=2, 3=3, 4=2^2, 5=5, 6=2*3, 7=7, 8=2^3, 9=3^2, 10=2*5, 11=11, 12=2^2*3, ...) becomes (0*0*1, 1*2*2, 3*3*4, 2*2*5, 5*6*2, 3*7*7, 8*2*3, 9*3*2, 10*2*5, 11*11*12, 2*2*3, ...).
Terms
- a(0) =0a(1) =4a(2) =36a(3) =20a(4) =60a(5) =147a(6) =48a(7) =54a(8) =100a(9) =1452a(10) =12a(11) =2366a(12) =210a(13) =240a(14) =136a(15) =612a(16) =114a(17) =760a(18) =210a(19) =462a(20) =506a(21) =1104a(22) =225a(23) =260a(24) =702a(25) =252a(26) =28a(27) =25230a(28) =30a(29) =30752
External references
- oeis: A144153