a(n) is the least integer such that the iterated modulus chain m_1=mod(a(n),m),m_2=mod(a(n),m_1),m_3=mod(a(n),m_2),..., m_n= (0 or 1) reaches a length n. The companion value m, associated to a(n), is given in A177968.
A177967
a(n) is the least integer such that the iterated modulus chain m_1=mod(a(n),m),m_2=mod(a(n),m_1),m_3=mod(a(n),m_2),..., m_n= (0 or 1) reaches a length n. The companion value m, associated to a(n), is given in A177968.
Terms
- a(0) =2a(1) =3a(2) =5a(3) =8a(4) =11a(5) =19a(6) =34a(7) =46a(8) =53a(9) =95a(10) =103a(11) =179a(12) =251a(13) =299a(14) =503a(15) =743a(16) =1006a(17) =1319a(18) =1439a(19) =2878a(20) =3359a(21) =3959a(22) =6619a(23) =5387a(24) =10774a(25) =5879a(26) =11758a(27) =17747a(28) =24373a(29) =40679
External references
- oeis: A177967