A252994 Multiples of 26.

0, 26, 52, 78, 104, 130, 156, 182, 208, 234, 260, 286, 312, 338, 364, 390, 416, 442, 468, 494, 520, 546, 572, 598, 624, 650, 676, 702, 728, 754, 780, 806, 832, 858, 884, 910, 936, 962, 988, 1014, 1040, 1066, 1092, 1118, 1144, 1170, 1196, 1222, 1248, 1274, 1300, 1326, 1352, 1378

Offset

0,2

References

Richard A. Mollin, Codes: The Guide to Secrecy From Ancient to Modern Times. Chapman and Hall/CRC (2005): 12.

Anne L. Young, Mathematical Ciphers: From Caesar to RSA. American Mathematical Society (2006): 23.

Links

Table of n, a(n) for n=0..53.

Index entries for linear recurrences with constant coefficients, signature (2, -1).

Formula

a(n) = 26*n = 2*a(n-1) - a(n-2).

G.f.: 26*x/(1-x)^2. - Georg Fischer, Feb 25 2019

Mathematica

26 Range[0, 51]

Prog

(PARI) a(n)=26*n \\ Georg Fischer, Feb 25 2019

Crossrefs

Cf. A008595, A008607, A244633.

Sequence in context: A267039 A122999 A040650 * A288162 A352346 A214476

Adjacent sequences: A252991 A252992 A252993 * A252995 A252996 A252997

Keyword

nonn,easy

Author

Alonso del Arte, Dec 25 2014

Status

approved