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A251723 First differences of A054272, A250473 and A250474: a(n) = A054272(n+1) - A054272(n). 8
1, 4, 5, 14, 8, 21, 10, 26, 46, 15, 56, 43, 19, 45, 79, 77, 31, 89, 65, 29, 105, 74, 113, 162, 88, 41, 86, 41, 99, 353, 98, 164, 48, 298, 57, 181, 185, 127, 197, 194, 75, 355, 76, 143, 74, 462, 478, 167, 81, 165, 269, 89, 437, 274, 273, 291, 90, 291, 198, 98, 511, 734, 219, 106, 214, 783, 340, 578, 124, 240, 362, 488, 380, 379, 251, 393, 529, 261, 530, 669, 150, 708, 150 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..5000

FORMULA

a(n) = A054272(n+1) - A054272(n).

a(n) = A256447(n) + A256448(n). [Cf. also A256449.]

PROG

(Scheme, two variants)

(define (A251723 n) (- (A054272 (+ n 1)) (A054272 n)))

(define (A251723 n) (- (A250474 (+ n 1)) (A250474 n)))

CROSSREFS

One less than A050216, the first differences of A000879.

Cf. A054272, A250473, A250474, A251719, A256446, A256447, A256448, A256449.

Sequence in context: A249394 A295278 A029663 * A082312 A239615 A195747

Adjacent sequences:  A251720 A251721 A251722 * A251724 A251725 A251726

KEYWORD

nonn

AUTHOR

Antti Karttunen, Dec 15 2014

STATUS

approved

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Last modified March 26 06:48 EDT 2019. Contains 321481 sequences. (Running on oeis4.)