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A374799
Irregular table T(n, k), n >= 0, k = 1..A048883(n), read by rows; the n-th row lists the numbers m such that A003986(m) = n.
3
0, 1, 2, 4, 3, 5, 12, 6, 7, 8, 9, 11, 13, 17, 18, 24, 10, 14, 40, 15, 16, 19, 20, 22, 26, 49, 50, 60, 21, 23, 25, 27, 38, 42, 59, 61, 84, 28, 29, 30, 31, 32, 33, 34, 35, 37, 39, 41, 43, 47, 48, 51, 52, 58, 62, 70, 71, 72, 73, 83, 85, 97, 98, 112, 36, 44, 144
OFFSET
0,3
COMMENTS
A003986 corresponds to a square array, but we consider it here as a flat sequence (when its values are read according along its antidiagonals).
As a flat sequence, this is a permutation of the nonnegative integers with inverse A374800.
FORMULA
T(n, 1) = A000217(n).
T(n, A048883(n)) = A046092(n).
EXAMPLE
Table T(n, k) begins:
n n-th row
- --------
0 0,
1 1, 2, 4;
2 3, 5, 12;
3 6, 7, 8, 9, 11, 13, 17, 18, 24;
4 10, 14, 40;
5 15, 16, 19, 20, 22, 26, 49, 50, 60;
6 21, 23, 25, 27, 38, 42, 59, 61, 84;
...
PROG
(PARI) \\ See Links section.
CROSSREFS
See A374817 for a similar sequence.
Sequence in context: A276472 A245702 A297706 * A093416 A073944 A072937
KEYWORD
nonn,base,look,tabf
AUTHOR
Rémy Sigrist, Jul 20 2024
STATUS
approved