A114881 Sieve of Eratosthenes minus 1.
1, 2, 3, 4, 8, 5, 6, 24, 14, 7, 10, 48, 34, 20, 9, 12, 120, 76, 54, 26, 11, 16, 168, 142, 90, 64, 32, 13, 18, 288, 220, 186, 118, 84, 38, 15, 22, 360, 322, 246, 208, 132, 94, 44, 17, 28, 528, 436, 390, 298, 252, 160, 114, 50, 19, 30
Offset: 1
Examples
Northwest corner: 1 3 5 7 9 2 8 14 20 26 4 24 34 54 64 6 48 76 90 118
Formula
A083140(n) - 1
Comments