A276954 Inverse permutation to A276953.

1, 3, 2, 4, 7, 6, 11, 5, 16, 22, 29, 8, 37, 12, 46, 56, 67, 79, 92, 106, 121, 137, 154, 10, 172, 17, 191, 211, 232, 9, 254, 23, 277, 301, 326, 30, 352, 38, 379, 407, 436, 466, 497, 529, 562, 596, 631, 13, 667, 47, 704, 742, 781, 18, 821, 57, 862, 904, 947, 68, 991, 80, 1036, 1082, 1129, 1177, 1226, 1276, 1327, 1379, 1432, 93

Offset

1,2

Links

Antti Karttunen, Table of n, a(n) for n = 1..10000

Index entries for sequences related to factorial base representation

Index entries for sequences that are permutations of the natural numbers

Formula

a(n) = (1/2) * ((c+r)^2 - r - 3*c + 2), where c = A276951(n), and r = A276949(n).

As a composition of other permutations:

a(n) = A257504(A275847(n)).

Prog

(Scheme) (define (A276954 n) (let ((col (A276951 n)) (row (A276949 n))) (* (/ 1 2) (- (expt (+ row col) 2) row col col col -2))))

Crossrefs

Inverse: A276953.

Cf. A276949, A276951.

Related or similar permutations: A257504, A275847.

Sequence in context: A129594 A214416 A170950 * A276944 A300501 A356957

Adjacent sequences: A276951 A276952 A276953 * A276955 A276956 A276957

Keyword

nonn,base

Author

Antti Karttunen, Sep 22 2016

Status

approved