Smallest integer m greater than n such that m (mod k) == n (mod k) for k = 1..n-1.

Terms

a(0) =2a(1) =3a(2) =5a(3) =10a(4) =17a(5) =66a(6) =67a(7) =428a(8) =849a(9) =2530a(10) =2531a(11) =27732a(12) =27733a(13) =360374a(14) =360375a(15) =360376a(16) =720737a(17) =12252258a(18) =12252259a(19) =232792580a(20) =232792581a(21) =232792582a(22) =232792583a(23) =5354228904a(24) =5354228905a(25) =26771144426a(26) =26771144427a(27) =80313433228a(28) =80313433229