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A337973
Addition table from A337946, read by antidiagonals.
5
2, 4, 4, 8, 6, 8, 13, 10, 10, 13, 23, 15, 14, 15, 23, 31, 25, 19, 19, 25, 31, 48, 33, 29, 24, 29, 33, 48, 62, 50, 37, 34, 34, 37, 50, 62, 86, 64, 54, 42, 44, 42, 54, 64, 86, 114, 88, 68, 59, 52, 52, 59, 68, 88, 114, 127, 116, 92, 73, 69, 60, 69, 73, 92, 116, 127
OFFSET
1,1
LINKS
Peter Kagey, Table of n, a(n) for n = 1..10011 (first 141 antidiagonals, flattened)
EXAMPLE
Addition table for A337946 begins:
+ | 1 3 7 12 22 30 47 61 85
-----+--------------------------------
1 | 2 4 8 13 23 31 48 62 86
3 | 4 6 10 15 25 33 50 64 88
7 | 8 10 14 19 29 37 54 68 92
12 | 13 15 19 24 34 42 59 73 97
22 | 23 25 29 34 44 52 69 83 107
30 | 31 33 37 42 52 60 77 91 115
47 | 48 50 54 59 69 77 94 108 132
61 | 62 64 68 73 83 91 108 122 146
85 | 86 88 92 97 107 115 132 146 170
CROSSREFS
Cf. A337972 (by rows), A337975 (multiplication).
Sequence in context: A285326 A355467 A079890 * A223592 A180444 A065608
KEYWORD
nonn,tabl
AUTHOR
Peter Kagey, Oct 05 2020
STATUS
approved