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A252373 Partial sums of A252372, inverse function for A251726. 4
0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 10, 11, 11, 12, 13, 14, 15, 16, 16, 17, 17, 18, 19, 20, 20, 21, 21, 22, 22, 23, 24, 24, 24, 25, 26, 27, 27, 27, 27, 28, 28, 29, 29, 30, 30, 31, 32, 33, 33, 33, 33, 34, 35, 36, 36, 36, 36, 37, 37, 38, 38, 39, 40, 41, 41, 42, 42, 42, 42, 43, 44, 45, 45, 46, 46, 47, 47, 48, 48, 49, 49, 50 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..10001

FORMULA

a(1) = 0, a(n) = A252372(n) + a(n-1).

Other identities. For all n >= 1:

a(A251726(n)) = n. [This works as an inverse or ranking function for the injection A251726.]

PROG

(Scheme, with memoization-macro definec)

(definec (A252373 n) (if (<= n 1) 0 (+ (A252372 n) (A252373 (- n 1)))))

CROSSREFS

Cf. A251726, A252372, A252459.

Sequence in context: A079631 A269849 A228881 * A245338 A160755 A017873

Adjacent sequences:  A252370 A252371 A252372 * A252374 A252375 A252376

KEYWORD

nonn

AUTHOR

Antti Karttunen, Dec 17 2014

STATUS

approved

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Last modified May 21 09:15 EDT 2019. Contains 323441 sequences. (Running on oeis4.)