A176988 - OEIS

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A176988 as a triangular array

1

3 2

5 4 6

9 7 8 10

15 13 11 12 14

21 19 17 16 18 20

27 25 23 22 24 26 28

35 33 31 29 30 32 34 36

45 43 41 39 37 38 40 42 44

55 53 51 49 47 46 48 50 52 54

65 63 61 59 57 56 58 60 62 64 66

77 75 73 71 69 67 68 70 72 74 76 78

91 89 87 85 83 81 79 80 82 84 86 88 90

105 103 101 99 97 95 93 92 94 96 98 100 102 104

119 117 115 113 111 109 107 106 108 110 112 114 116 118 120

A176988 as a square array

1 3 5 9 15 21 27 35 45 55 65 77 91 105 119

2 4 7 13 19 25 33 43 53 63 75 89 103 117

6 8 11 17 23 31 41 51 61 73 87 101 115

10 12 16 22 29 39 49 59 71 85 99 113

14 18 24 30 37 47 57 69 83 97 111

20 26 32 38 46 56 67 81 95 109

28 34 40 48 58 68 79 93 107

36 42 50 60 70 80 92 106

44 52 62 72 82 94 108

54 64 74 84 96 110

66 76 86 98 112

78 88 100 114

90 102 116

104 118

120

A176988 as an upper right triangle