number of prime factors of the entries in the sona-bec triangle, i.e. A001222( A227960 ) http://oeis.org/A227960 http://pastebin.com/raw.php?i=t8eFAVZi 1 2 2 4 4 3 3 8 8 7 7 7 4 5 4 16 16 15 15 15 13 13 12 12 13 12 7 7 7 5 5 32 32 31 31 31 29 29 29 28 28 29 28 26 25 24 27 23 26 20 24 23 21 23 22 21 21 6 5 6 9 6 13 11 7 10 7 64 64 63 63 63 61 61 61 60 60 61 60 60 58 57 57 56 59 55 56 58 52 56 55 53 55 54 53 53 45 45 46 48 45 47 45 38 47 46 37 49 38 46 47 38 41 47 40 46 38 41 38 45 41 43 41 39 39 42 39 10 7 8 9 10 9 12 10 13 7 12 19 18 20 16 17 10 12 11 9